US2926116A - Wet-strength paper and method of making same - Google Patents

Wet-strength paper and method of making same Download PDF

Info

Publication number
US2926116A
US2926116A US682086A US68208657A US2926116A US 2926116 A US2926116 A US 2926116A US 682086 A US682086 A US 682086A US 68208657 A US68208657 A US 68208657A US 2926116 A US2926116 A US 2926116A
Authority
US
United States
Prior art keywords
paper
polyamide
resin
epichlorohydrin
acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US682086A
Inventor
Gerald I Keim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hercules Powder Co
Original Assignee
Hercules Powder Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27505392&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US2926116(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to NL110447D priority Critical patent/NL110447C/xx
Priority to NL231136D priority patent/NL231136A/xx
Priority to US447411A priority patent/US1476116A/en
Application filed by Hercules Powder Co filed Critical Hercules Powder Co
Priority to US682086A priority patent/US2926116A/en
Priority claimed from US694909A external-priority patent/US3049469A/en
Priority to GB26945/58A priority patent/GB865727A/en
Priority to DE1546369A priority patent/DE1546369C3/en
Priority to DEH34226A priority patent/DE1177824B/en
Priority to FR38672A priority patent/FR1265829A/en
Priority to US796743A priority patent/US2926154A/en
Publication of US2926116A publication Critical patent/US2926116A/en
Application granted granted Critical
Priority to US792161*A priority patent/US3483077A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20Macromolecular organic compounds
    • D21H17/33Synthetic macromolecular compounds
    • D21H17/46Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/55Polyamides; Polyaminoamides; Polyester-amides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/48Polymers modified by chemical after-treatment
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/59Polyamides; Polyimides
    • D06M15/595Derivatives obtained by substitution of a hydrogen atom of the carboxamide radical

Definitions

  • This invention relates to the manufacture of resintreated cellulosic fibers and fibrous products prepared therefrom and is directed particularly to a method for improving the wet strength of felted fibrous cellulosic materials such as paper, paperboard, shaped paper articles and the like.
  • the invention includes the improved cellulosic fibers and fibrous products themselves as well as methods'of preparing these products from aqueous suspensions of fibrous cellulosic material such as paper pulp.
  • a principal object of the present invention is the pro vision of-ta ".mfilhod tor adding wet-strength to -any type of paper regardless of whetherit is produced under acid, neutral or alkalinerconditions.
  • the-above and other objects are accomplished'byapplying to fibrouscellulosic material such as paper pulp an uncured thermosetting
  • the dibasic carboxylic acid is first reacted with the polyalkylene'polyamine, preferably in aqueous solution,. underconditions.suchasto produce a-watersoluble polyamide containing-the recurring groups wh'eren and x are each 2 or more and 'Ris the divalent hydrocarbon radical of the dibasic carboxylic acid.
  • This water-solublepolyamide is then reacted with epichloro hydrin to .form the water-soluble cationic therrnosetting resin.
  • the dicarboxylic acids contemplated for use in preparirigthe resins. of the invention are the saturated aliphatic dibasic carboxylic acidscontaining from 3'to 10carbon atoms such as succinic, adipic, azelaic and the like.
  • the saturated dibasicacids having from 4'to 8carbon atoms inthe molecule are preferred."
  • Blends of two or. more of the saturated 'dibasic carboxylic acids may;.also.
  • polyaltkylene polyamines including polyethylene polyamines, polypropylene polyamines, polybutYlenepo1yamines-and so "on may be employed of which It hasbeen found that resins of,
  • the polyalkylene polyamines contemplated for use may be represented as polyamines in which the nitrogen atoms are linked together by groups of the formula -C,,H where n is a small integer greater than unity and the number of such groups in themolecule ranges from two up to about eight.
  • nitrogen atoms may be attached to adjacent carbon atoms in' 'the group -C,',H or to carbon atoms further apart, but not to the same carbon atom.
  • This invention contemplates not only the use of such. polyamines as diethylenetriamine, triethylenetetramine, tetraethylenep enta mine, and dipropylenetriamine, which can be obtained in' reasonably pure form, but also mixtures and. various crude polyamine materials.
  • the tennpolyalkylene polyamine employed in the claims therefore, refers to and includes any of the polyalkylene polyamines referred to above or to a mixture of such polyalkylene polyamines.
  • polyalkylene polyamine up to about of the polyalkylene polyamine may be replaced by 'a molecularly equivalent amount of the diamine. will serve the purpose.
  • the temperatures employed for carrying out the reac tion between-the-dibasic-acid and the polyalkylene polyamine mayvary. from about C. to about 250 C. or-higher at atmospheric pressure.
  • reaction is desirably continued to substantial completion for best results.
  • anamount ofdibasic acid sufficie'nt to react substantially completelywith the primary-amine groups of the polyalltyle'ne polyamine but insufiicient to react with the sec-- ondary amine groups to any substantial extent.
  • This will.usually require a mole ratio of polyalkylene polyamine to dibasic acid of from about 0.921 to about 1.2: 1.
  • mole ratios of from about 0.8:1 to about 1.4:1
  • mole ratios below about 0.8:l result in a gelled product or one having a pronounced tendency to gel while mole ratios above 1.4:1 result in low molecular weight polyamides.
  • Suchproducts do not produce efiicient wetstrength resins when reacted with epichlorohydrin.
  • pHadjustm'ent is usual ly notnecessary However, since the pHz; decreasesduringahe polymerization: phase of the reaction
  • the mixture Usually; a replacement of about 50% or less' For most purposes; however,- temperatures-between about C. and 210" C(h'avebeen found satisfactory and are preferred. Where itmay be desirable, in some cases, to add alkali to combine with at least some of the acid formed. This will create an environment favoring the conversion of the chlorohydrin groups to epoxide groups, thereby increasing the ratio of the latter to the former.
  • sufiicient water is then added to adjust'the solids content of the resin solution to the desired amount, i.e., about 10% more or less, the product cooled to about 25 C. and then stabilized by adding suificient acid to reduce the pH at least to about 6 and preferably to about 5.
  • Any suitable acid such as hydrochloric, sulfuric, nitric, formic, phosphoric and acetic acid may be used to stabilize the product.
  • hydrochloric acid is preferred.
  • the cationic polyamide-epichlorohydrin resins may be applied to paper or other felted cellulosic products by tub application or by spraying, if desired.
  • preformed and partially or completely dried paper may be impregnated by immersion in, or spraying with, an aqueous solution of the resin following which the paper may be heated for about 0.5 to 30 minutes at temperatures of 90 C. to 100 C. or higher to dry same and cure the resin to a water-insoluble condition.
  • the resulting paper has greatly increased wet strength, and, therefore, this method is well suited for the impregnation of paper towels, absorbent tissue and the like as well as heavier stocks such as wrapping paper, bag paper and the like to impart wet strength characteristics thereto.
  • the preferred method of incorporating these resins in paper is by internal addition prior to sheet formation whereby advantage is taken of the substantivity of the resins for hydrated cellulosic fibers.
  • an aqueous solution of the resin in its uncured and hydrophilic state is added to an aqueous suspension of paper stock in the beater, stock chest,
  • Jordan engine, fan pump, head box or at any other'suitable point ahead of sheet formation The sheet is then formed and dried in the usual manner, thereby curing the resin to its polymerized and water-insoluble condition and imparting wet strength to the paper.
  • the cationic thermosetting resins herein disclosed impart wet strength to paper when present therein in amounts of about 0.1-% or more based on the dry weight of the paper.
  • the quantity of resin to be added to the aqueous stock suspension will depend on the degree of wet strength desired in the finished product and on the amount of resin retained by the paper fibers.
  • the uncured cationic thermosetting resins of the invention may be cured under acid, neutral or alkaline conditions, i.e., at pHs from about 4.0 to 10, by subjecting the paper to a heat-treatment for about 0.5 to 30 minutes at a temperature from about 90 to 100 C. Optimum results, however, are obtained under alkaline conditions. In view of this, and the rather extensive corrosion of equipment encountered at pHs below about 6.0, it is preferred to carry out the curing step at a pH from about 6.0 to about 9.0.
  • EXAMPLE 1 Two hundred twenty-five grams (2.18 moles) of diethylenetriamine and 100 grams of water were placed in a 3fnecked flask equipped with a mechanical stirrer, thermometer and condenser. To this was added 290 grams (2.0 moles) of adipic acid. After the acid had dissolved in the amine, the solution was heated to 185200 C. and held there for 1 /2 hours. Then vacuum from a water pump was applied to the flask during the period required for the contents of the flask to cool to 140 C. following which 430 grams of H 0 was added. The
  • polyamide solution contained 52.3% solids and had an acid number of 2.1.
  • Tacoma-bleached kraft was beaten to a Schopper- Riegler freeness of 750 cc. in a Noble and Wood cycle beater.
  • the pulp was then adjusted to pH 9.0 with V 10% NaOH and 1.0%, based on the dry weight of pulp, of the polyamide-epichlorohydrin resin, prepared as described, was added.
  • the pulp was sheeted on a. Noble and Wood handsheet machine using a closed system in which the white water contained p.p.m. sulfate ion and had been adjusted to pH 9.0 with 10% NaOH.
  • a portion of the resulting handsheets were given an additional cure of 1 hour at C.
  • the sheets were then soaked in distilled water for 2 hours and tested for wet strength. Results are listed in the table which follows Example 4.
  • EXAMPLE 2 A polyamide was prepared from 319 grams (2.18 moles) of triethylenetetramine and 290 grams (2.0 moles) of adipic acid according to the procedure described in Example 1. The polyamide solution had a pH of 10.8, an acid number of 3.2 and contained 4.98% solids.
  • EXAMPLE 3 A polyamide was prepared according to the procedure given in Example 1 using 225 grams (2.18 moles) of diethylenetriamine and 218 grams (1.5 moles) of adipic acid and 94 grams (0.5 mole) of azelaic acid. Fiftyseven and one-half grams of the polyamide solution (55% solids) were dissolved in grams of H 0 and heated to 50 C. To this were added 15 grams of epichlorohydrin over a period of 6 minutes. This solution was then heated at 6070 C. until the viscosity of the condensate reached E (Gardner). Then grams of H 0 were added and the product was cooled to 25 C. It was adjusted to pH 5.0 by adding 10 ml. of 3.7% HCl. The finished resin had a viscosity of B (Gardner) and contained 9.5% solids. It was evaluated in paper according to the procedure outlined in Example 1. Results are listed in the table following Example 4.
  • Example 1 The procedure of Example 1 was followed 'withthe (1) The reaction mixture was following exceptions. held between 180 C. and 195 C. for 45 minutes; (2) aspirator vacuum was used during this entire period; and (3) the mixture was cooled to 140 C. and diluted with 43 0 ml. of distilled water (80 0.). amide solution contained 52.4% total solids and had an acid number of 3.4.
  • Tacoma bleached kraft waterleaf sheets were tubsized (BO-second dip) in a 2.0% aqueous solution of the resin, prepared as above described, and adjusted to pH 9.0 with 10% sodium hydroxide. The sheets were squeezed (roll) and drum dried. Half were cured at 105 C. for one hour and the cured and uncured sheets then soaked in distilled water for 2 hours and tested for Mullen burst. The Mullen burst (pounds per square inchaverage of .five determinations) was 10.8 for the ,uncured sheets and 15.2 for the cured sheets as compared with a Mullen burst of less than 1 for sheets which had not been treated with the resin.
  • cell'ul'os'ic paper stock a Water-solublecationic thermosettingresin fo'rmed by"r'eactingepichlorohydrin with' a polyamide of 516 -0 saturated aliphatic' dibasic carbo'x'ylic acid and from about 0.8 'to about 1.4 moles,
  • wet-strength paper which comprises addin'g to an aqueous suspension of cellulosic paper stock a water-soluble cationic thermosett-iiig resin" formed by reacting, at a temperature from abo'ut45 C.
  • aliphatic diamine the amount'of said aliphatic diamine not exceeding 50% by weight of the polyalkylene polyamine, said polyamide containing secondary amine groups, the ratio of epichlorohydrin to secondary amine groups of said polyamide being from about 0.5 to 1 to about 1.8 to 1, adsorbing from about 0.15% of said resin on said paper stock, forming the stock so treated into a sheet, and heating the'sheet to cure the resin to a water-insoluble state.
  • a process for the production of wet-strength paper which comprises incorporating therein from about 0.1% to about 5%, based on the dry weight of the paper, of a cationic thermosetting polyamide-epichlorohydrin resin obtained by (1) reacting a C -C saturated aliphatic dibasic carboxylic acid with from about 0.8 to about 1.4 moles, per mole of dibasic carboxylic acid, of a polyalkylene polyamine at a temperature from about 110 C. to about 250 C. to form a polyamide containing secondary amine groups and (2) reacting the polyamide with epichlorohydrin at a temperature from about 45 C. to about 100 C. and at a ratio of epichlorohydrin to secondary amine groups of the polyamide of from about 0.5 to 1 to 1.8 to l to form a watersoluble cationic thermosetting resin, said resin having been cured to a water-insoluble state.
  • a cationic thermosetting polyamide-epichlorohydrin resin obtained by (1) react
  • a process for the production of wet-strength paper which comprises incorporating therein from about 0.1% to about 5%, based on the dry Weight of the paper, of a cationic thermosetting polyamide-epichlorohydrin resin obtained by (1) reacting a C -C saturated alyphatic dibasic carboxylic acid with a polyalkylene polyamine in a mole ratio of polyalkylene polyamine to dibasic acid of from about 0.8 to 1 to about 1.4 to 1 and at a temperature from about 160 C. to about 210 C. to form a polyamide containing secondary amine groups, and (2) reacting the polyamide with epichlorohydrin at a temperature from about 45 C. to about 70 C.
  • a paper product having improved wet strength comprising sheeted cellulosic fibers containing -from about 0.1% to 5%, based on its dry weight, of a cationic thermosetting polyamide-ep'ichlorohydrin resin" obtained by (1) reacting a C -C saturated aliphatic dibasic carboxylic acid with from about 0.8 to about 1.4 moles, per mole of dibasic acid, of a polyalkylene polyamine at a temperature. from about 110 C.t about 250 C. to form a polyamide containingsecondary amine groups and (2) reacting the polyamide with epichlorohydrin at a temperature from about ,45" C. to about 100 C. and at a ratio of epichlorohydrin to secondary amine groups of the polyamide of from about 0.5 to 1 to 1.8 to 1 to form a water-soluble pationic thermosetting resin, said resin having been cured to a water-insoluble state.
  • a cationic thermosetting polyamide-ep'ichlorohydrin resin
  • a paper product having improved wet strength comprising sheeted cellulosic fibers containing .from about 0.1% to 5%, based on its dry weight, of a cationic thermosetting polyamide-epichlorohydrin resin obtained by (1) reacting a 0 -0 saturated aliphatic dibasic carboxylic acid with a polyalkylene polyamineina mole ra tion of polyalkylene polyamine to dibasic acid of from about 0.8 to 1 to about 1.4 to l and at a temperature from about 160 C. to about 210 C. to form a polyamide containing secondary amine groups, and (2) reacting the polyamide with epichlorohydrin at a temperature from about C. to about C. and in a ratio of epichlorohydrin to secondary amine groups of said polyamide of from about 0,5 to 1 to about 1.8 to 1,
  • dibasic carboxylic acid is a C -C saturated aliphatic I dibasic carboxylic acid.

Description

WET-STRENGTH PAPER AND METHOD OF MAKING SAME Gerald I. Keim, West Grove, Pa., assignor to Hercules Powder Company, Wilmington, Del., a corporation of Delaware No Drawing. Application September 5, 1957 Serial No. 682,086
Claims. (Cl. 162-164) This invention relates to the manufacture of resintreated cellulosic fibers and fibrous products prepared therefrom and is directed particularly to a method for improving the wet strength of felted fibrous cellulosic materials such as paper, paperboard, shaped paper articles and the like. The invention includes the improved cellulosic fibers and fibrous products themselves as well as methods'of preparing these products from aqueous suspensions of fibrous cellulosic material such as paper pulp.
Commercial wet-strength resins presently available do not function efiectively at pHs much above 5.5. As a consequence, many grades of paper made on the alkaline side for various reasons such as'strength, softness, use.
of falkalinefillers and so on, cannot be wet-strengthened.
Moreover," the ldw pH required to effectively" use the acid-curing wet-strength resins presently available in creases machine corrosion and raises maintenance costs.
A principal object of the present invention is the pro vision of-ta ".mfilhod tor adding wet-strength to -any type of paper regardless of whetherit is produced under acid, neutral or alkalinerconditions.
Inaaccordance with'thednvention, the-above and other objects are accomplished'byapplying to fibrouscellulosic material such as paper pulp an uncured thermosetting In the preparation of the cationic resins :co-ntemplated for use herein, the dibasic carboxylic acid is first reacted with the polyalkylene'polyamine, preferably in aqueous solution,. underconditions.suchasto produce a-watersoluble polyamide containing-the recurring groups wh'eren and x are each 2 or more and 'Ris the divalent hydrocarbon radical of the dibasic carboxylic acid. This water-solublepolyamide is then reacted with epichloro hydrin to .form the water-soluble cationic therrnosetting resin.
The dicarboxylic acids contemplated for use in preparirigthe resins. of the invention .are the saturated aliphatic dibasic carboxylic acidscontaining from 3'to 10carbon atoms such as succinic, adipic, azelaic and the like. The saturated dibasicacids having from 4'to 8carbon atoms inthe molecule are preferred." Blends of two or. more of the saturated 'dibasic carboxylic acids may;.also.
be used."
A variety of polyaltkylene polyamines including polyethylene polyamines, polypropylene polyamines, polybutYlenepo1yamines-and so "on may be employed of which It hasbeen found that resins of,
nited States Patent- 6 Z,926, l l6 Patented Feb. 23, 1960 the polyethylene polyamines represent an economically;
preferred class. More specifically, the polyalkylene polyamines contemplated for use may be represented as polyamines in which the nitrogen atoms are linked together by groups of the formula -C,,H where n is a small integer greater than unity and the number of such groups in themolecule ranges from two up to about eight. nitrogen atoms may be attached to adjacent carbon atoms in' 'the group -C,',H or to carbon atoms further apart, but not to the same carbon atom. This invention contemplates not only the use of such. polyamines as diethylenetriamine, triethylenetetramine, tetraethylenep enta mine, and dipropylenetriamine, which can be obtained in' reasonably pure form, but also mixtures and. various crude polyamine materials. of polyethylenepolyamines obtained by the reaction of ammonia andethylene dichloride, refined only to the extent-of removal .of chlorides, water, excess ammonia, and ethylenediamine, is a very satisfactory starting material. The tennpolyalkylene polyamine employed in the claims, therefore, refers to and includes any of the polyalkylene polyamines referred to above or to a mixture of such polyalkylene polyamines.
It is desirable, in some cases, to increase the spacing of "secondary amino groups on the polyamide moleculeenediamine, h'examethylenediamine and the like for a portion ofth polyalkylene polyamine. For this purpose,-
up to about of the polyalkylene polyamine may be replaced by 'a molecularly equivalent amount of the diamine. will serve the purpose.
The temperatures employed for carrying out the reac tion between-the-dibasic-acid and the polyalkylene polyamine mayvary. from about C. to about 250 C. or-higher at atmospheric pressure.
reduced pressures are-employed, somewhat lower temperatures may-be'utiliz'ed. The time of reaction depends on'the temperatures and pressures utilized and will ordi'rlarily vary from about /2 to 2 hours, although shorter or 'longer reaction times may be utilized depending on reaction conditions. In any event, the reaction is desirably continued to substantial completion for best results.
In carrying-out the reaction, it is preferred to use anamount ofdibasic acid sufficie'nt to react substantially completelywith the primary-amine groups of the polyalltyle'ne polyamine but insufiicient to react with the sec-- ondary amine groups to any substantial extent. This will.usually require a mole ratio of polyalkylene polyamine to dibasic acid of from about 0.921 to about 1.2: 1.
However, mole ratios of from about 0.8:1 to about 1.4:1
may be used with quite satisfactory results. Mole ratios outsideof these ranges are generally unsatisfactory.
Thus; mole ratios below about 0.8:l result in a gelled product or one having a pronounced tendency to gel while mole ratios above 1.4:1 result in low molecular weight polyamides. Suchproducts do not produce efiicient wetstrength resins when reacted with epichlorohydrin.
In converting the polyamide, formed as above described," to :a -catio-nic thermosetting resin, it is reacted with. epichlorohydrin at a temperature from about 45 C. to about 100 C. and preferably between about 45 C. and 70''C. until'th'e viscosity of a 20% solids solution at 25 C. has reached about .Cv or higher on the Gardner- Holdt scale. This reaction is preferably carried out in aqueous' solution to moderateth'e reaction. pHadjustm'ent is usual ly notnecessary However, since the pHz; decreasesduringahe polymerization: phase of the reaction The For example, the mixture Usually; a replacement of about 50% or less' For most purposes; however,- temperatures-between about C. and 210" C(h'avebeen found satisfactory and are preferred. Where itmay be desirable, in some cases, to add alkali to combine with at least some of the acid formed. This will create an environment favoring the conversion of the chlorohydrin groups to epoxide groups, thereby increasing the ratio of the latter to the former.
When the desired viscosity is reached, sufiicient water is then added to adjust'the solids content of the resin solution to the desired amount, i.e., about 10% more or less, the product cooled to about 25 C. and then stabilized by adding suificient acid to reduce the pH at least to about 6 and preferably to about 5. Any suitable acid such as hydrochloric, sulfuric, nitric, formic, phosphoric and acetic acid may be used to stabilize the product. However, hydrochloric acid is preferred.
In the polyamide-epichlorohydrin reaction, it is preferred to use sufficient epichlorohydrin to convert all secondary amine groups to tertiary amine groups. However, more or less may be added to moderate or increase reaction rates. In general, satisfactory results may be obtained utilizing from about 0.5 me] to about 1.8 moles of epichlorohydrin for each secondary amine group of the polyamide. It is preferred to utilize from about 1.0 mole to about 1.5 moles for each secondary amine group of the polyarnide.
The cationic polyamide-epichlorohydrin resins, prepared as herein described, may be applied to paper or other felted cellulosic products by tub application or by spraying, if desired. Thus, for example, preformed and partially or completely dried paper may be impregnated by immersion in, or spraying with, an aqueous solution of the resin following which the paper may be heated for about 0.5 to 30 minutes at temperatures of 90 C. to 100 C. or higher to dry same and cure the resin to a water-insoluble condition. The resulting paper has greatly increased wet strength, and, therefore, this method is well suited for the impregnation of paper towels, absorbent tissue and the like as well as heavier stocks such as wrapping paper, bag paper and the like to impart wet strength characteristics thereto.
The preferred method of incorporating these resins in paper, however, is by internal addition prior to sheet formation whereby advantage is taken of the substantivity of the resins for hydrated cellulosic fibers. In practicing this method, an aqueous solution of the resin in its uncured and hydrophilic state is added to an aqueous suspension of paper stock in the beater, stock chest,
Jordan engine, fan pump, head box or at any other'suitable point ahead of sheet formation. The sheet is then formed and dried in the usual manner, thereby curing the resin to its polymerized and water-insoluble condition and imparting wet strength to the paper.
The cationic thermosetting resins herein disclosed impart wet strength to paper when present therein in amounts of about 0.1-% or more based on the dry weight of the paper. The quantity of resin to be added to the aqueous stock suspension will depend on the degree of wet strength desired in the finished product and on the amount of resin retained by the paper fibers.
The uncured cationic thermosetting resins of the invention, incorporated in paper in any suitable manner, as described above, may be cured under acid, neutral or alkaline conditions, i.e., at pHs from about 4.0 to 10, by subjecting the paper to a heat-treatment for about 0.5 to 30 minutes at a temperature from about 90 to 100 C. Optimum results, however, are obtained under alkaline conditions. In view of this, and the rather extensive corrosion of equipment encountered at pHs below about 6.0, it is preferred to carry out the curing step at a pH from about 6.0 to about 9.0.
The following examples will illustrate theinvention.
EXAMPLE 1 Two hundred twenty-five grams (2.18 moles) of diethylenetriamine and 100 grams of water were placed in a 3fnecked flask equipped with a mechanical stirrer, thermometer and condenser. To this was added 290 grams (2.0 moles) of adipic acid. After the acid had dissolved in the amine, the solution was heated to 185200 C. and held there for 1 /2 hours. Then vacuum from a water pump was applied to the flask during the period required for the contents of the flask to cool to 140 C. following which 430 grams of H 0 was added. The
polyamide solution contained 52.3% solids and had an acid number of 2.1.
To 60 grams of this polyamide solution in a roundbottom flask were added 225 grams of H 0. This solution was heated to 50 C. and 12.5 grams of epichlorohydrin were added dropwise over a period of 11 minutes. The contents of the flask was then heated to 60- 70 C. until it had attained a Gardner viscosity of E. Then 150 grams of H 0 were added to the product, and it was cooled to 25 C. Eleven mls. of 3.7% HCl were then added to adjust the pH to 5.0. The product contained 9.0% solids and had a Gardner viscosity of C-D.
Tacoma-bleached kraft was beaten to a Schopper- Riegler freeness of 750 cc. in a Noble and Wood cycle beater. The pulp was then adjusted to pH 9.0 with V 10% NaOH and 1.0%, based on the dry weight of pulp, of the polyamide-epichlorohydrin resin, prepared as described, was added. The pulp was sheeted on a. Noble and Wood handsheet machine using a closed system in which the white water contained p.p.m. sulfate ion and had been adjusted to pH 9.0 with 10% NaOH. A portion of the resulting handsheets were given an additional cure of 1 hour at C. The sheets were then soaked in distilled water for 2 hours and tested for wet strength. Results are listed in the table which follows Example 4.
EXAMPLE 2 A polyamide was prepared from 319 grams (2.18 moles) of triethylenetetramine and 290 grams (2.0 moles) of adipic acid according to the procedure described in Example 1. The polyamide solution had a pH of 10.8, an acid number of 3.2 and contained 4.98% solids.
Sixty-three grams of the polyamide solution was dissolved in 225 grams of H 0. This solution was stirred mechanically and heated to 50 C. Twenty-five grams of epichlorohydrin were added dropwise over a period of three minutes. The solution was then heated to 60- 70 C. until it reached a viscosity of E (Gardner). Then it was diluted with 225 grams of H 0, cooled to 25 C. and adjusted to pH 5.0 with 11 ml. of 3.7% HCl. The product containing 8.4% solids and having a. Gardner viscosity of C, was evaluated in bleached kraft pulp according to the procedure presented in Example 1. Results are listed in the table following Example 4.
EXAMPLE 3 A polyamide was prepared according to the procedure given in Example 1 using 225 grams (2.18 moles) of diethylenetriamine and 218 grams (1.5 moles) of adipic acid and 94 grams (0.5 mole) of azelaic acid. Fiftyseven and one-half grams of the polyamide solution (55% solids) were dissolved in grams of H 0 and heated to 50 C. To this were added 15 grams of epichlorohydrin over a period of 6 minutes. This solution was then heated at 6070 C. until the viscosity of the condensate reached E (Gardner). Then grams of H 0 were added and the product was cooled to 25 C. It was adjusted to pH 5.0 by adding 10 ml. of 3.7% HCl. The finished resin had a viscosity of B (Gardner) and contained 9.5% solids. It was evaluated in paper according to the procedure outlined in Example 1. Results are listed in the table following Example 4.
EXAMPLE 4 ..Sheets, of paper were prepared and tested for wet stre gth; tr mmers tiexceptrhttrnd resin was as: pdiat'ed." Theresult'sf*are set=forthiri the following table;
The following additional exammewin "further" illus'-" trate the invention where a portion .of the polyalkylene polyamine titilizetl 'ifpreparing the resinisreplaced by adiamine. Y
EXAMPLE-5' A polyamide was-prepared lfrom' therfollowing ingrei nts Diethylenetriaminena 204.4 grams (1.9 8rno1es). Ethylenediamine....- 14.0. grams (0.24 mol) Adipic acid 290Z0g'rarns (1.98 moles).
--.-.'1'00.0 grams. I
, The procedure of Example 1 was followed 'withthe (1) The reaction mixture was following exceptions. held between 180 C. and 195 C. for 45 minutes; (2) aspirator vacuum was used during this entire period; and (3) the mixture was cooled to 140 C. and diluted with 43 0 ml. of distilled water (80 0.). amide solution contained 52.4% total solids and had an acid number of 3.4.
To 60.5 grams of this polyamide solution were added 225.0 grams of H 0. This solution was heated to 50 The poly- C. and 11.25 grams of epichlorohydrin was added dropwise over a period of about 11 minutes. The solution was then heated to 7080 C. and held at this temperature until it had attained a viscosity of E Gardner-'Holdt. It was then diluted with 173 ml. of water and adjusted to pH 5.0 with dilute HCl. The product contained 8.9% solids and had a Gardner viscosity of B-C.
Tacoma bleached kraft waterleaf sheets were tubsized (BO-second dip) in a 2.0% aqueous solution of the resin, prepared as above described, and adjusted to pH 9.0 with 10% sodium hydroxide. The sheets were squeezed (roll) and drum dried. Half were cured at 105 C. for one hour and the cured and uncured sheets then soaked in distilled water for 2 hours and tested for Mullen burst. The Mullen burst (pounds per square inchaverage of .five determinations) was 10.8 for the ,uncured sheets and 15.2 for the cured sheets as compared with a Mullen burst of less than 1 for sheets which had not been treated with the resin.
It will thus be seen that the present invention makes it possible to prepare wet-strength paper under acid, neutral or alkaline conditions and by internal addition or by surface application. While preferred embodiments of the invention have been exemplified and described herein, the invention is not to be construed as limited thereby except-as the same may be included in the following claims.
What I claim and desire to protect by Letters Patent is: i
1. A process for the production of wet-strength paper.
cell'ul'os'ic paper stock a Water-solublecationic thermosettingresin fo'rmed by"r'eactingepichlorohydrin with' a polyamide of 516 -0 saturated aliphatic' dibasic carbo'x'ylic acid and from about 0.8 'to about 1.4 moles,
per l-hole; or dibasic acid of a polyalkylene polyamine. at a temperaturefrom about -45' C'. to about 100 C.,. said' polyaniide"acoiitaining secondary amine groups, the.
ratio of epichlorohydrin to secondary amine groups of said polya'mi'cle bein'g fromabout10.5 to 1 to about 1.8'
to=-1-, adsorbingfrom about. 0.1-5% of said resin on' saidpaper stock, formingthe stocks'o treated into a sheet,- and heating th'e sheet to cure the resin toa-water-insolw 3'5 pro'e'ess for the production of wet-strength paper which comprises addin'g to an aqueous suspension of cellulosic paper stock a water-soluble cationic thermosett-iiig resin" formed by reacting, at a temperature from abo'ut45 C. to"about"100C., epichlorohydrin witha polyamide of'a "Ci .satu'r'ated -aliphatic dibasic car.- box'ylic acidp fro about-018 to'about' 1.4 moles, per
aliphatic diamine, the amount'of said aliphatic diamine not exceeding 50% by weight of the polyalkylene polyamine, said polyamide containing secondary amine groups, the ratio of epichlorohydrin to secondary amine groups of said polyamide being from about 0.5 to 1 to about 1.8 to 1, adsorbing from about 0.15% of said resin on said paper stock, forming the stock so treated into a sheet, and heating the'sheet to cure the resin to a water-insoluble state.
4. A process for the production of wet-strength paper which comprises incorporating therein from about 0.1% to about 5%, based on the dry weight of the paper, of a cationic thermosetting polyamide-epichlorohydrin resin obtained by (1) reacting a C -C saturated aliphatic dibasic carboxylic acid with from about 0.8 to about 1.4 moles, per mole of dibasic carboxylic acid, of a polyalkylene polyamine at a temperature from about 110 C. to about 250 C. to form a polyamide containing secondary amine groups and (2) reacting the polyamide with epichlorohydrin at a temperature from about 45 C. to about 100 C. and at a ratio of epichlorohydrin to secondary amine groups of the polyamide of from about 0.5 to 1 to 1.8 to l to form a watersoluble cationic thermosetting resin, said resin having been cured to a water-insoluble state.
5. A process for the production of wet-strength paper which comprises incorporating therein from about 0.1% to about 5%, based on the dry Weight of the paper, of a cationic thermosetting polyamide-epichlorohydrin resin obtained by (1) reacting a C -C saturated alyphatic dibasic carboxylic acid with a polyalkylene polyamine in a mole ratio of polyalkylene polyamine to dibasic acid of from about 0.8 to 1 to about 1.4 to 1 and at a temperature from about 160 C. to about 210 C. to form a polyamide containing secondary amine groups, and (2) reacting the polyamide with epichlorohydrin at a temperature from about 45 C. to about 70 C. and in a ratio of epichlorohydrin to secondary amine groups of said polyamide of from about 0.5 mi to about 1.8 to 1, and then curing the resin to a water-insoluble state. 6. A paper product having improved wet strength comprising sheeted cellulosic fibers containing from about 0.1% to 5%, based on its dry weight, of a cationic thermosetting resin, said resin comprising a watersoluble reaction product of epichlorohydrin and a poly. amide containing secondary amine groups, the ratio of epichlorohydrin to secondary amine groups of said poly- C =G saturated aliphatic dibasic carboxylic acid and? a polya1kyle'i1e polyamiiie in a mo'le ratio ofpolyalkylene 5 polyamine -to dibasic-acid oi from about 0.8 .tor1 tov about 1.4" to lt and then-curing the resin=to a water-ins. soluble'-s'tat'e'.'-* i I 29A process tor the-production of wet strengthpaper 1 which comprises adding to an aqueous suspension of polyamide being obtained by heating'together ,at a temperature from about 110 C. to about 250. C. a C -C I saturated aliphatic dibasic carboxylic acid and fro1nabout 0.8 to about 1.4 moles, per mole of dibasic acid, of a polyalkylene polyamine, saidresin having been cured to a water-insoluble state. 1 g
7. A paper product having improved wet strength comprising sheeted cellulosic fibers containing -from about 0.1% to 5%, based on its dry weight, of a cationic thermosetting polyamide-ep'ichlorohydrin resin" obtained by (1) reacting a C -C saturated aliphatic dibasic carboxylic acid with from about 0.8 to about 1.4 moles, per mole of dibasic acid, of a polyalkylene polyamine at a temperature. from about 110 C.t about 250 C. to form a polyamide containingsecondary amine groups and (2) reacting the polyamide with epichlorohydrin at a temperature from about ,45" C. to about 100 C. and at a ratio of epichlorohydrin to secondary amine groups of the polyamide of from about 0.5 to 1 to 1.8 to 1 to form a water-soluble pationic thermosetting resin, said resin having been cured to a water-insoluble state. I
8. A paper product having improved wet strength comprising sheeted cellulosic fibers containing .from about 0.1% to 5%, based on its dry weight, of a cationic thermosetting polyamide-epichlorohydrin resin obtained by (1) reacting a 0 -0 saturated aliphatic dibasic carboxylic acid with a polyalkylene polyamineina mole ra tion of polyalkylene polyamine to dibasic acid of from about 0.8 to 1 to about 1.4 to l and at a temperature from about 160 C. to about 210 C. to form a polyamide containing secondary amine groups, and (2) reacting the polyamide with epichlorohydrin at a temperature from about C. to about C. and in a ratio of epichlorohydrin to secondary amine groups of said polyamide of from about 0,5 to 1 to about 1.8 to 1,
9. A process in accordance with claim 5 in which the dibasic carboxylic acid is a C -C saturated aliphatic I dibasic carboxylic acid. a
10. A paper product in accordance with claim 8 in which the dibasic carboxylic acid is a C -C saturated aliphatic dibasiccarboxylic acid.
References Cited in the file of this patent UNITED STATES PATENTS 2,595,935 Daniel et a1. May 6, 1952 FOREIGN-PATENTS 529,729 Canada Aug 28, 1956 610,311 Great Britain Oct. 14,1948
' r OTHER REFERENCES 1 Serial No. 323,512, Hagedorn (A.P.C.),. published- April 20, 1943.
UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No 2,926,116 February 23 1960 Gerald I. Keim It is herebfi certified that error appears in the-printed specification of the above numbered patent requiring correction and that the said Letters Patent should read as corrected below.
Column 2 line 3O for "th" read the ---5 column 8 lines 1 and 2 for ration read ratio Signed and sealed this. 23rd day of August- 1960 (SEAL) Attest: v KARL H; AXLINE ROBERT C. WATSON Attesting Officer Commissioner of Patents

Claims (1)

1. A PROCESS FOR THE PRODUCTION OF WET-STRENGTH PAPER WHICH COMPRISES INCORPORATING THEREIN FROM ABOUT 0.1% TO ABOUT 5%, BASED ON THE WEIGHT OF THE PAPER, OF A CATIONIC THERMOSETTING RESIN, SAID RESIN COMPRISING A WATER-SOLUBLE REACTION PRODUCT OF EPICHLOROHYDRIN AND A POLAMIDE CONTAINING SECONDARY AMINE GROUPS, THE RATIO OF EPICHLOROHYDRIN TO SECONDARY AMINE GROUPS OF SAID POLYAMIDE BEING FROM ABOUT 0.5 TO 1 TO ABOUT 1.8 TO 1, SAID POLYAMIDE BEING OBTAINED BY HEATING TOGETHER AT A TEMPERATURE FROM ABOUT 110* C. TO ABOUT 250* C. A C3-C10 SATURATED ALIPHATIC DIBASIC CARBOXYLIC ACID AND A POLYALKYLENE POLYAMINE IN A MOLE RATIO OF POLYALKYLENE POLYAMINE TO DIBASIC ACID OF FROM ABOUT 0.8 TO 1 TO ABOUT 1.5 TO 1, AND THEN CURING THE RESIN TO A WATER IN SOLUBLE STATE.
US682086A 1921-02-24 1957-09-05 Wet-strength paper and method of making same Expired - Lifetime US2926116A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL110447D NL110447C (en) 1957-09-05
NL231136D NL231136A (en) 1957-09-05
US447411A US1476116A (en) 1921-02-24 1921-02-24 Electrical heating or resistance unit
US682086A US2926116A (en) 1957-09-05 1957-09-05 Wet-strength paper and method of making same
GB26945/58A GB865727A (en) 1957-09-05 1958-08-21 Improvements in or relating to resins
DEH34226A DE1177824B (en) 1957-09-05 1958-09-02 Process for the production of water-soluble condensates based on polyamides and epichlorohydrin
DE1546369A DE1546369C3 (en) 1957-09-05 1958-09-02 Process for making paper, paperboard and the like with improved wet strength. Eliminated from: 1177824
FR38672A FR1265829A (en) 1957-09-05 1958-09-05 Improvements to resins obtained by reaction of a polyamide with epichlorohydrin
US796743A US2926154A (en) 1957-09-05 1959-03-03 Cationic thermosetting polyamide-epichlorohydrin resins and process of making same
US792161*A US3483077A (en) 1957-09-05 1969-01-17 Process of forming paper containing additaments and polyamide - epichlorohydrin resin

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US68208957A 1957-09-05 1957-09-05
US682086A US2926116A (en) 1957-09-05 1957-09-05 Wet-strength paper and method of making same
US69493057A 1957-11-07 1957-11-07
US694909A US3049469A (en) 1957-11-07 1957-11-07 Application of coating or impregnating materials to fibrous material

Publications (1)

Publication Number Publication Date
US2926116A true US2926116A (en) 1960-02-23

Family

ID=27505392

Family Applications (2)

Application Number Title Priority Date Filing Date
US682086A Expired - Lifetime US2926116A (en) 1921-02-24 1957-09-05 Wet-strength paper and method of making same
US792161*A Expired - Lifetime US3483077A (en) 1957-09-05 1969-01-17 Process of forming paper containing additaments and polyamide - epichlorohydrin resin

Family Applications After (1)

Application Number Title Priority Date Filing Date
US792161*A Expired - Lifetime US3483077A (en) 1957-09-05 1969-01-17 Process of forming paper containing additaments and polyamide - epichlorohydrin resin

Country Status (5)

Country Link
US (2) US2926116A (en)
DE (2) DE1546369C3 (en)
FR (1) FR1265829A (en)
GB (1) GB865727A (en)
NL (2) NL110447C (en)

Cited By (229)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058873A (en) * 1958-09-10 1962-10-16 Hercules Powder Co Ltd Manufacture of paper having improved wet strength
US3066066A (en) * 1958-03-27 1962-11-27 Hercules Powder Co Ltd Mineral fiber products and method of preparing same
US3103462A (en) * 1960-04-18 1963-09-10 Eastman Kodak Co Method of improving the strength characteristics of paper prepared from partially acylated cellulose fibers
US3132944A (en) * 1960-04-18 1964-05-12 Eastman Kodak Co Photographic paper prepared from partially acylated cellulose fibers
US3146158A (en) * 1962-04-30 1964-08-25 Kimberly Clark Co Inhibiting foaming of cellulose slurries containing wet strength resins
US3186900A (en) * 1962-07-13 1965-06-01 Hercules Powder Co Ltd Sizing paper under substantially neutral conditions with a preblend of rosin and cationic polyamide-epichlorohydrin resin
US3212961A (en) * 1961-10-23 1965-10-19 Hercules Powder Co Ltd Pretreatment of paper pulp with ketene dimer in improving sizeability
US3248280A (en) * 1963-07-29 1966-04-26 Owens Illinois Inc Cellulosic and wool materials containing a reaction product of epichlorohydrin and a polyamide derived from polyalkylene polyamine with a mixture of polymeric fatty acid and dibasic carboxylic acid
US3250664A (en) * 1963-10-24 1966-05-10 Scott Paper Co Process of preparing wet strength paper containing ph independent nylon-type resins
US3278561A (en) * 1962-06-15 1966-10-11 Monsanto Co Hydrophobic diglycidylamines
US3372085A (en) * 1965-04-14 1968-03-05 Union Carbide Corp Water-soluble polyalkylenepolyamine/urethane resins and application thereof in production of wet strength paper
US3372086A (en) * 1965-04-14 1968-03-05 Union Carbide Corp Water-soluble polyalkylenepolyamine/dialdehyde resins and application thereof in production of wet strength paper
US3420735A (en) * 1967-03-31 1969-01-07 Scott Paper Co Wet-strength resins and a process for improving the wet-strength of paper
US3462383A (en) * 1966-03-07 1969-08-19 Dow Chemical Co Wet strength additives for cellulosic products
US3483077A (en) * 1957-09-05 1969-12-09 Hercules Inc Process of forming paper containing additaments and polyamide - epichlorohydrin resin
US3640840A (en) * 1968-03-27 1972-02-08 Bayer Ag Component reaction product and process for increasing the wet strength of paper
US3692092A (en) * 1968-06-13 1972-09-19 Dow Chemical Co Paper containing a polyethylenimine-fatty acid epichlorohydrin product
US3728215A (en) * 1971-03-12 1973-04-17 Hercules Inc Aminopalyamide{13 acrylamide{13 polyaldehyde resins employing an alpha, beta-unsaturated monobasic carboxylic acid or ester to make the aminopolyamide and their utility as wet and dry strengthening agents in papermaking
US3874877A (en) * 1971-07-30 1975-04-01 Fuji Photo Film Co Ltd Subbing method for photographic film support
US3914155A (en) * 1972-09-07 1975-10-21 Georgia Pacific Corp Polyamide/formaldehyde/epichlorohydrin wet strength resins and use thereof in production of wet strength paper
US3915711A (en) * 1970-08-07 1975-10-28 Fuji Photo Film Co Ltd Subbing layer photographic films with adhesive
US3962159A (en) * 1975-02-03 1976-06-08 National Starch And Chemical Corporation Graft copolymers of a polyamideamine substrate and starch, and method of making same
US3980769A (en) * 1972-09-05 1976-09-14 L'oreal Shampoo containing a water-soluble cationic polymer
US3996146A (en) * 1975-08-01 1976-12-07 Warner-Lambert Company Clear shampoo formulation
US4017431A (en) * 1973-11-28 1977-04-12 Hercules Incorporated Aqueous dispersions of wax blends and a water-soluble cationic resin and paper sized therewith
US4109053A (en) * 1973-11-05 1978-08-22 Hercules Incorporated Sizing paper with stable dispersions of hydrocarbon resins
US4154646A (en) * 1977-07-22 1979-05-15 Hercules Incorporated Preparation of hydrophilic styrene maleic anhydride copolymer fibers for use in papermaking
US4156628A (en) * 1976-01-28 1979-05-29 Hercules Incorporated Preparation of hydrophilic polyolefin fibers for use in papermaking
US4172887A (en) * 1973-11-30 1979-10-30 L'oreal Hair conditioning compositions containing crosslinked polyaminopolyamides
US4189468A (en) * 1973-11-30 1980-02-19 L'oreal Crosslinked polyamino-polyamide in hair conditioning compositions
US4201766A (en) * 1977-03-02 1980-05-06 L'oreal Hair conditioning composition and method of using the same
US4240935A (en) * 1978-12-22 1980-12-23 Hercules Incorporated Ketene dimer paper sizing compositions
US4263182A (en) * 1979-09-06 1981-04-21 Hercules Incorporated Stable dispersions of fortified rosin
US4273892A (en) * 1974-11-05 1981-06-16 Hercules Incorporated Preparation of hydrophilic polyolefin fibers for use in papermaking
US4277581A (en) * 1973-11-30 1981-07-07 L'oreal Polyamino-polyamide crosslinked with crosslinking agent
US4317756A (en) * 1977-08-19 1982-03-02 Hercules Incorporated Sizing composition comprising a hydrophobic cellulose-reactive sizing agent and a cationic polymer
US4347339A (en) * 1981-05-08 1982-08-31 Nalco Chemical Company Cationic block copolymers
JPS58146408A (en) * 1982-02-05 1983-09-01 ポ−ル・コ−ポレ−シヨン Polyamide membrane having controlled surface property
WO1984003055A1 (en) 1983-02-07 1984-08-16 Univ Yale Transfer of macromolecules from a chromatographic substrate to an immobilizing matrix
US4473474A (en) * 1980-10-27 1984-09-25 Amf Inc. Charge modified microporous membrane, process for charge modifying said membrane and process for filtration of fluid
US4478682A (en) * 1981-07-02 1984-10-23 Hercules Incorporated Sizing method and sizing composition for use therein
DE3328463A1 (en) * 1983-08-06 1985-02-21 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück PHOTOGRAPHIC PAPER CARRIER
US4523995A (en) * 1981-10-19 1985-06-18 Pall Corporation Charge-modified microfiber filter sheets
US4673504A (en) * 1980-10-27 1987-06-16 Cuno Inc. Charge modified microporous membrane
US4689374A (en) * 1983-06-09 1987-08-25 W. R. Grace & Co. Water soluble polyamidoaminepolyamine having weight average molecular weight of at least 5×105
US4708803A (en) * 1980-10-27 1987-11-24 Cuno Incorporated Liquid filtration using hydrophilic cationic isotropic microporous nylon membrane
US4711793A (en) * 1980-10-27 1987-12-08 Cuno Incorporated Process for charge modifying a microphorous membrane
US4714736A (en) * 1986-05-29 1987-12-22 The Dow Chemical Company Stable polyamide solutions
US4722964A (en) * 1986-06-20 1988-02-02 Borden, Inc. Epoxidized polyalkyleneamine-amide wet strength resin
US4737291A (en) * 1981-05-29 1988-04-12 Cuno Incorporated Charge modified microporous membrane
US4743418A (en) * 1981-05-29 1988-05-10 Cuno Incorporated Process for charge modifying a microporous membrane
US4839415A (en) * 1986-05-10 1989-06-13 Akzo N.V. Paper sizing agents, the manufacture and use of same
US4980067A (en) * 1985-07-23 1990-12-25 Cuno, Inc. Polyionene-transformed microporous membrane
US5004543A (en) * 1988-06-21 1991-04-02 Millipore Corporation Charge-modified hydrophobic membrane materials and method for making the same
US5017642A (en) * 1988-12-23 1991-05-21 Sumitomo Chemical Company, Limited Process for producing aqueous solution of cationic thermosetting resin
EP0469891A1 (en) * 1990-08-01 1992-02-05 Hercules Incorporated Process for the production of improved polyaminopolyamide epichlorohydrin resins
US5131981A (en) * 1987-09-30 1992-07-21 Basf Aktiengesellschaft Coloring paper
US5189142A (en) * 1990-08-24 1993-02-23 Henkel Corporation Wet strength resin composition and method of making same
US5213588A (en) * 1992-02-04 1993-05-25 The Procter & Gamble Company Abrasive wiping articles and a process for preparing such articles
US5239047A (en) * 1990-08-24 1993-08-24 Henkel Corporation Wet strength resin composition and method of making same
US5256727A (en) * 1992-04-30 1993-10-26 Georgia-Pacific Resins, Inc. Resins with reduced epichlorohydrin hydrolyzates
US5269921A (en) * 1989-04-11 1993-12-14 Seitz-Filter-Werke Gmbh & Co. Filter cartridge or filter module consisting of flexible deep filter material
US5364927A (en) * 1990-08-24 1994-11-15 Henkel Corporation Wet strength resin composition and method of making same
US5374334A (en) * 1993-12-06 1994-12-20 Nalco Chemical Company Class of polymeric adhesives for yankee dryer applications
US5391340A (en) * 1993-06-25 1995-02-21 Georgia-Pacific Resins, Inc. Method of manufacture of top coated cellulosic panel
US5439010A (en) * 1993-01-06 1995-08-08 Dexter Speciality Materials Ltd. Fibrous bonded sheet material
EP0651038A3 (en) * 1993-10-29 1995-11-02 Sun Chemical Corp Heatset security ink.
US5523019A (en) * 1992-12-09 1996-06-04 E. F. Houghton & Company Defoamer composition
EP0717146A2 (en) 1994-12-14 1996-06-19 Hercules Incorporated Wet strength resins having reduced levels of organic halogen by-products
US5529665A (en) * 1994-08-08 1996-06-25 Kimberly-Clark Corporation Method for making soft tissue using cationic silicones
US5531797A (en) * 1994-03-07 1996-07-02 Basf Aktiengesellschaft Aqueous dye preparations containing coumarin dyes
US5552020A (en) * 1995-07-21 1996-09-03 Kimberly-Clark Corporation Tissue products containing softeners and silicone glycol
US5567798A (en) * 1994-09-12 1996-10-22 Georgia-Pacific Resins, Inc. Repulpable wet strength resins for paper and paperboard
US5602209A (en) * 1994-12-08 1997-02-11 Houghton International, Inc. Creping adhesive containing oxazoline polymers
US5644021A (en) * 1990-12-31 1997-07-01 Hercules Incorporated Synthesis of high solids-content wet-strength resin
US5656699A (en) * 1994-04-18 1997-08-12 Hercules Incorporated Oligoamide-epichlorohydrin resins as drainage aids
US5714552A (en) * 1990-11-30 1998-02-03 Hercules Incorporated Process for making epichlorohydrin resins
US5730839A (en) * 1995-07-21 1998-03-24 Kimberly-Clark Worldwide, Inc. Method of creping tissue webs containing a softener using a closed creping pocket
US5747125A (en) * 1996-07-18 1998-05-05 Viskase Corporation Fibrous composite cellulosic film and method
US5786429A (en) * 1996-04-18 1998-07-28 Hercules Incorporated Highly branched polyamidoamines and their preparation
US5837768A (en) * 1994-12-08 1998-11-17 Hercules Incorporated Creping adhesives containing oxazoline polymers and methods of use thereof
US5843575A (en) * 1994-02-17 1998-12-01 The Procter & Gamble Company Absorbent members comprising absorbent material having improved absorbent property
US5849405A (en) * 1994-08-31 1998-12-15 The Procter & Gamble Company Absorbent materials having improved absorbent property and methods for making the same
US5858171A (en) * 1994-12-08 1999-01-12 Hercules Incorporated Methods for manufacturing paper using creping adhesives containing oxazoline polymers
US5904808A (en) * 1996-09-16 1999-05-18 Hercules Incorporated Processes and compositions for repulping wet strength paper and paper products
US5908889A (en) * 1997-12-03 1999-06-01 Nalco Chemical Company Polyamide binders for ceramics manufacture
US5912306A (en) * 1992-12-30 1999-06-15 Hercules Incorporated Cationic compounds useful as drainage aids and stabilizers for rosin-based sizing agents
US5935383A (en) * 1996-12-04 1999-08-10 Kimberly-Clark Worldwide, Inc. Method for improved wet strength paper
US5985432A (en) * 1994-02-17 1999-11-16 The Procter & Gamble Company Porous absorbent materials having modified surface characteristics and methods for making the same
US5990333A (en) * 1996-06-19 1999-11-23 Hercules Incorporated Silyl-linked polyamidoamines and their preparation
WO2000029670A1 (en) * 1998-11-12 2000-05-25 Paper Technology Foundation Inc. Strengthening compositions and treatments for lignocellulosic materials
US6075082A (en) * 1997-12-03 2000-06-13 Nalco Chemical Company Cross-linked polymide binders for ceramics manufacture
US6080279A (en) * 1996-05-14 2000-06-27 Kimberly-Clark Worldwide, Inc. Air press for dewatering a wet web
US6083346A (en) * 1996-05-14 2000-07-04 Kimberly-Clark Worldwide, Inc. Method of dewatering wet web using an integrally sealed air press
US6096169A (en) * 1996-05-14 2000-08-01 Kimberly-Clark Worldwide, Inc. Method for making cellulosic web with reduced energy input
US6143132A (en) * 1992-04-06 2000-11-07 Bayer Aktiengesellschaft Process for imparting wet strength to paper
US6149767A (en) * 1997-10-31 2000-11-21 Kimberly-Clark Worldwide, Inc. Method for making soft tissue
US6153106A (en) * 1999-03-03 2000-11-28 Nalco Chemical Company Method for inhibiting the formation and deposition of silica scale in water systems
US6156157A (en) * 1995-07-21 2000-12-05 Kimberly-Clark Worldwide, Inc. Method for making soft tissue with improved bulk softness and surface softness
US6165322A (en) * 1997-07-29 2000-12-26 Hercules Incorporated Polyamidoamine/epichlorohydrin resins bearing polyol sidechains as dry strength agents
US6171441B1 (en) 1997-09-29 2001-01-09 Buckeye Technologies Inc. Resin-treated mercerized fibers and products thereof
US6187137B1 (en) 1997-10-31 2001-02-13 Kimberly-Clark Worldwide, Inc. Method of producing low density resilient webs
US6194057B1 (en) 1998-11-12 2001-02-27 Paper Technology Foundation Inc. Partially impregnated lignocellulosic materials
US6197154B1 (en) 1997-10-31 2001-03-06 Kimberly-Clark Worldwide, Inc. Low density resilient webs and methods of making such webs
US6211357B1 (en) 1999-12-09 2001-04-03 Paper Technology Foundation, Inc. Strengthening compositions and treatments for lignocellulosic materials
US6281350B1 (en) 1999-12-17 2001-08-28 Paper Technology Foundation Inc. Methods for the reduction of bleeding of lignosulfonates from lignosulfonate-treated substrates
US6303181B1 (en) 1993-05-17 2001-10-16 Electrochemicals Inc. Direct metallization process employing a cationic conditioner and a binder
US6306257B1 (en) 1998-06-17 2001-10-23 Kimberly-Clark Worldwide, Inc. Air press for dewatering a wet web
US6315865B1 (en) 1998-02-27 2001-11-13 Hercules Incorporated Silyl-linked polyamidoamine and their preparation
US6318727B1 (en) 1999-11-05 2001-11-20 Kimberly-Clark Worldwide, Inc. Apparatus for maintaining a fluid seal with a moving substrate
WO2001096588A2 (en) * 2000-06-13 2001-12-20 Hercules Incorporated Enzyme-catalyzed polyamides and compositions and processes of preparing and using the same
US6336995B1 (en) 2000-07-26 2002-01-08 Vulcan Materials, Inc. Cross linked polyamide-ephalohydrin creping additives
US6352613B1 (en) 2000-03-14 2002-03-05 Hercules Incorporated Resin compositions having high solids contents
US6355137B1 (en) 1997-12-31 2002-03-12 Hercules Incorporated Repulpable wet strength paper
US6361651B1 (en) 1998-12-30 2002-03-26 Kimberly-Clark Worldwide, Inc. Chemically modified pulp fiber
US6398911B1 (en) 2000-01-21 2002-06-04 Kimberly-Clark Worldwide, Inc. Modified polysaccharides containing polysiloxane moieties
US6429267B1 (en) 1997-12-31 2002-08-06 Hercules Incorporated Process to reduce the AOX level of wet strength resins by treatment with base
US6429253B1 (en) 1997-02-14 2002-08-06 Bayer Corporation Papermaking methods and compositions
US20020117280A1 (en) * 2000-08-04 2002-08-29 Matthew Howle Fibrous sheet enhancement
US6465602B2 (en) 2000-01-20 2002-10-15 Kimberly-Clark Worldwide, Inc. Modified condensation polymers having azetidinium groups and containing polysiloxane moieties
US6500912B1 (en) 2000-09-12 2002-12-31 Resolution Performance Products Llc Epoxy resin system
US6517678B1 (en) 2000-01-20 2003-02-11 Kimberly-Clark Worldwide, Inc. Modified polysaccharides containing amphiphillic hydrocarbon moieties
US6537615B2 (en) 1998-11-12 2003-03-25 Paper Technology Foundation Inc. Steam-assisted paper impregnation
US6537616B2 (en) 1998-11-12 2003-03-25 Paper Technology Foundation Inc. Stam-assisted paper impregnation
US20030077314A1 (en) * 2001-08-30 2003-04-24 Kimberly-Clark Worldwide, Inc. Tissue products containing a flexible binder
US6579418B2 (en) 1998-08-12 2003-06-17 Kimberly-Clark Worldwide, Inc. Leakage control system for treatment of moving webs
US20030118848A1 (en) * 2001-12-21 2003-06-26 Kou-Chang Liu Method for the application of hydrophobic chemicals to tissue webs
US6586520B1 (en) 1999-07-08 2003-07-01 Hercules Incorporated Compositions for imparting desired properties to materials
US20030121627A1 (en) * 2001-12-03 2003-07-03 Sheng-Hsin Hu Tissue products having reduced lint and slough
US6596126B1 (en) 1999-01-25 2003-07-22 Kimberly-Clark Worldwide, Inc. Modified polysaccharides containing aliphatic hydrocarbon moieties
US20030166791A1 (en) * 2002-01-07 2003-09-04 Fang Deng Polyalkyldiallylamine-epihalohydrin resins as wet strength additives for papermaking and process for making the same
US6635146B2 (en) 1998-07-08 2003-10-21 Kimberly-Clark Worldwide, Inc. Enzymatic treatment of pulp to increase strength using truncated hydrolytic enzymes
US6663942B1 (en) 1995-05-18 2003-12-16 Fort James Corporation Crosslinkable creping adhesive formulations applied to a dryer surface or to a cellulosic fiber
US20040020565A1 (en) * 1999-07-08 2004-02-05 Ge Betz, Inc. Non-chromate conversion coating treatment for metals
US6689250B1 (en) 1995-05-18 2004-02-10 Fort James Corporation Crosslinkable creping adhesive formulations
US6710259B2 (en) 1993-05-17 2004-03-23 Electrochemicals, Inc. Printed wiring boards and methods for making them
US20040065422A1 (en) * 2002-10-08 2004-04-08 Kimberly-Clark Worldwide, Inc. Tissue products having reduced slough
US20040074622A1 (en) * 2002-10-16 2004-04-22 Kou-Chang Liu Method for applying softening compositions to a tissue product
US20040079502A1 (en) * 2002-10-28 2004-04-29 Kimberly-Clark Worldwide,Inc. Process for applying a liquid additive to both sides of a tissue web
US20040086726A1 (en) * 2002-11-06 2004-05-06 Moline David Andrew Soft tissue hydrophilic tissue products containing polysiloxane and having unique absorbent properties
US20040084165A1 (en) * 2002-11-06 2004-05-06 Shannon Thomas Gerard Soft tissue products containing selectively treated fibers
US20040087237A1 (en) * 2002-11-06 2004-05-06 Kimberly-Clark Worldwide, Inc. Tissue products having reduced lint and slough
US20040089429A1 (en) * 2002-11-08 2004-05-13 Kimberly-Clark Worldwide, Inc. Method for enhancing the softness of paper-based products
US20040089418A1 (en) * 2002-05-13 2004-05-13 State Board Of Higher Education On Behalf Of Oregon State University Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
US6740373B1 (en) 1997-02-26 2004-05-25 Fort James Corporation Coated paperboards and paperboard containers having improved tactile and bulk insulation properties
US20040099392A1 (en) * 2002-11-27 2004-05-27 Kimberly-Clark Worldwide, Inc. Soft paper product including beneficial agents
US20040112558A1 (en) * 2002-12-13 2004-06-17 Kimberly-Clark Worldwide, Inc. Tissue products having enhanced strength
US20040149411A1 (en) * 2001-06-11 2004-08-05 Krueger Ellen Wet-strength finishing agents for paper
US20040188047A1 (en) * 2003-03-24 2004-09-30 Nof Corporation Paper additive composition and method for producing paper using the same
US20040198947A1 (en) * 2003-04-01 2004-10-07 Hercules Incorporated Synthesis of high solids resins from amine terminated polyamides
US6808595B1 (en) 2000-10-10 2004-10-26 Kimberly-Clark Worldwide, Inc. Soft paper products with low lint and slough
US20040220368A1 (en) * 2003-03-20 2004-11-04 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Adhesive compositions and methods of using and making the same
US20040234804A1 (en) * 2003-05-19 2004-11-25 Kimberly-Clark Worldwide, Inc. Single ply tissue products surface treated with a softening agent
US20050006040A1 (en) * 2002-04-12 2005-01-13 Boettcher Jeffery J. Creping adhesive modifier and process for producing paper products
US6896769B2 (en) 1999-01-25 2005-05-24 Kimberly-Clark Worldwide, Inc. Modified condensation polymers containing azetidinium groups in conjunction with amphiphilic hydrocarbon moieties
US20050148261A1 (en) * 2003-12-30 2005-07-07 Kimberly-Clark Worldwide, Inc. Nonwoven webs having reduced lint and slough
US6919111B2 (en) 1997-02-26 2005-07-19 Fort James Corporation Coated paperboards and paperboard containers having improved tactile and bulk insulation properties
US20050192402A1 (en) * 2004-02-26 2005-09-01 Miroslav Antal Epichlorohydrin-based polymers containing primary amino groups used as additives in papermaking
WO2005113700A1 (en) 2004-04-20 2005-12-01 State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
US20050279471A1 (en) * 2004-06-18 2005-12-22 Murray Frank C High solids fabric crepe process for producing absorbent sheet with in-fabric drying
US20060090818A1 (en) * 2004-10-29 2006-05-04 General Electric Company Novel non-chrome metal treatment composition
US7060798B2 (en) 2002-05-13 2006-06-13 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Oregon State University Modified protein adhesives and lignocellulosic composites made from the adhesives
US20060144536A1 (en) * 2004-12-30 2006-07-06 Nickel Deborah J Soft and durable tissues made with thermoplastic polymer complexes
US20060144541A1 (en) * 2004-12-30 2006-07-06 Deborah Joy Nickel Softening agent pre-treated fibers
EP1703019A1 (en) 2005-03-15 2006-09-20 Fort James Corporation Phosphoric acid stabilized creping adhesive
US20060237154A1 (en) * 2005-04-21 2006-10-26 Edwards Steven L Multi-ply paper towel with absorbent core
US20060270801A1 (en) * 2005-05-25 2006-11-30 Georgia-Pacific Resins, Inc. Glyoxalated inter-copolymers with high and adjustable charge density
US20060289134A1 (en) * 2005-06-24 2006-12-28 Yeh Kang C Method of making fabric-creped sheet for dispensers
EP1770214A1 (en) 2005-09-28 2007-04-04 Fuji Photo Film B.V. Recording support
US20070106061A1 (en) * 2005-09-27 2007-05-10 Zollinger Mark L Methods to reduce organic impurity levels in polymers and products made therefrom
US20070204966A1 (en) * 2006-03-06 2007-09-06 Georgia-Pacific Consumer Products Lp Method Of Controlling Adhesive Build-Up On A Yankee Dryer
US7317053B1 (en) 2000-07-10 2008-01-08 Hercules Incorporated Compositions for imparting desired properties to materials
US20080029235A1 (en) * 2002-10-07 2008-02-07 Georgia-Pacific Consumer Products Lp Fabric creped absorbent sheet with variable local basis weight
US20080050602A1 (en) * 2006-08-24 2008-02-28 Spraul Bryan K Adhesive composition of low molecular weight polyaminopolyamide-epichlorohydrin (PAE) resin and protein
US20080149287A1 (en) * 2006-12-20 2008-06-26 Georgia-Pacific Chemicals Llc Polyacrylamide-based strengthening agent
WO2008089419A1 (en) * 2007-01-19 2008-07-24 Hercules Incorporated Creping adhesives made from amine-terminated polyamidoamines
US20080213597A1 (en) * 2004-01-22 2008-09-04 Kaichang Li Formaldehyde-Free Adhesives and Lignocellulosic Composites Made from the Adhesives
US20080233369A1 (en) * 2005-09-28 2008-09-25 Fujifilm Manufacturing Europe B.V. Recording support
US20080257507A1 (en) * 2007-04-17 2008-10-23 Campbell Clayton J Acidified polyamidoamine adhesives, method of manufacture, and use for creping and ply bond applications
EP1985754A2 (en) 2002-10-07 2008-10-29 Georgia-Pacific Consumer Products LP Method of making a belt-creped cellulosic sheet
US20080292886A1 (en) * 2007-03-23 2008-11-27 Hercules Inc. Adhesive formulations containing urea additives, methods of forming plywood therewith, and plywood products made thereby
US20080302497A1 (en) * 2004-08-05 2008-12-11 Joachim Storsberg Paper Product with Increased Relative Wet Tensile Strength and Softness, Method for Production and Use Thereof
US20090194244A1 (en) * 2008-02-01 2009-08-06 Georgia-Pacific Consumer Products Lp High Basis Weight TAD Towel Prepared From Coarse Furnish
EP2088237A1 (en) 2008-02-01 2009-08-12 Georgia-Pacific Consumer Products LP High basis weight TAD towel prepared from coarse furnish
WO2009151612A2 (en) 2008-06-11 2009-12-17 Georgia-Pacific Consumer Products Lp Absorbent sheet prepared with papermaking fiber and synthetic fiber exhibiting improved wet strength
US20100000694A1 (en) * 2006-08-31 2010-01-07 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Paper product and method for production thereof and use thereof
US20100065235A1 (en) * 2008-09-16 2010-03-18 Dixie Consumer Products Llc Food wrap base sheet with regenerated cellulose microfiber
US20100294725A1 (en) * 2007-10-19 2010-11-25 Georgia-Pacific Chemicals Llc Azetidinium-functional polysaccharides and uses thereof
US20100331457A1 (en) * 2007-12-12 2010-12-30 Matthias Buri Surface-mineralized organic fibers
WO2011042227A1 (en) 2009-10-09 2011-04-14 Weiser Chemie + Technik Ug Method for producing wet-strengthened papers
EP2330250A2 (en) 2009-12-07 2011-06-08 Georgia-Pacific Consumer Products LP Moist crepe process
US20120168103A1 (en) * 2011-01-05 2012-07-05 Georgia-Pacific Consumer Products Lp Creping Adhesive Compositions And Methods Of Using Those Compositions
US8246781B2 (en) 2010-05-20 2012-08-21 Georgia-Pacific Chemicals Llc Thermosetting creping adhesive with reactive modifiers
WO2012135455A1 (en) 2011-03-29 2012-10-04 Kemira Oyj Polyamine polyamidoamine epihalohydrin compositions and processes for preparing and using the same
US8293072B2 (en) 2009-01-28 2012-10-23 Georgia-Pacific Consumer Products Lp Belt-creped, variable local basis weight absorbent sheet prepared with perforated polymeric belt
WO2013019526A1 (en) 2011-08-01 2013-02-07 Buckman Laboratories International, Inc. Creping methods using ph-modified creping adhesive compositions
US8394236B2 (en) 2002-10-07 2013-03-12 Georgia-Pacific Consumer Products Lp Absorbent sheet of cellulosic fibers
WO2013046060A1 (en) 2011-09-30 2013-04-04 Kemira Oyj Paper and methods of making paper
WO2013095952A1 (en) 2011-12-22 2013-06-27 Kemira Oyj Compositions and methods of making paper products
US8636874B2 (en) 2002-10-07 2014-01-28 Georgia-Pacific Consumer Products Lp Fabric-creped absorbent cellulosic sheet having a variable local basis weight
WO2014049437A1 (en) 2012-09-26 2014-04-03 Kemira Oyj Absorbent materials, products including absorbent materials, compositions, and methods of making absorbent materials
US8747616B2 (en) 2012-09-12 2014-06-10 Ecolab Usa Inc Method for the emulsification of ASA with polyamidoamine epihalohydrin (PAE)
WO2014087232A1 (en) 2012-12-06 2014-06-12 Kemira Oyj Compositions used in paper and methods of making paper
WO2014140799A1 (en) 2013-03-14 2014-09-18 Kemira Oyj Compositions and methods of making paper products
WO2015069966A1 (en) 2013-11-07 2015-05-14 Georgia-Pacific Chemicals Llc Creping adhesives and methods for making and using same
WO2015073917A1 (en) 2013-11-15 2015-05-21 Buckeye Technologies Inc. Dispersible nonwoven wipe material
WO2015088881A1 (en) 2013-12-10 2015-06-18 Buckman Laboratories International, Inc. Adhesive formulation and creping methods using same
US20150322339A1 (en) * 2011-08-22 2015-11-12 Construction Research & Technology Gmbh Use of polyamine as anti-sticking additive
US9243365B2 (en) 2013-12-20 2016-01-26 Georgia-Pacific Chemicals Llc Release aids with adjustable cloud points for creping processes
WO2016205650A2 (en) 2015-06-19 2016-12-22 Koch Agronomic Services, Llc Strengthened composite products and methods for making and using same
WO2016210066A1 (en) 2015-06-25 2016-12-29 Georgia-Pacific Chemicals Llc Creping adhesives containing functionalized crosslinked resins
US9689114B2 (en) 2014-08-07 2017-06-27 Georgia-Pacific Chemicals Llc Strengthening resins for paper products
WO2017123734A1 (en) 2016-01-12 2017-07-20 Georgia-Pacific Consumer Products Lp Nonwoven cleaning substrate
US9815717B2 (en) 2013-11-08 2017-11-14 Georgia-Pacific Chemicals Llc Depressants for use in separation processes
WO2018132692A1 (en) 2017-01-12 2018-07-19 Georgia-Pacific Nonwovens LLC Nonwoven material for cleaning and sanitizing surfaces
WO2018132688A1 (en) 2017-01-12 2018-07-19 Georgia-Pacific Nonwovens LLC Nonwoven material for cleaning and sanitizing surfaces
WO2018132684A1 (en) 2017-01-12 2018-07-19 Georgia-Pacific Nonwovens LLC Nonwoven material for cleaning and sanitizing surfaces
WO2018187192A1 (en) 2017-04-03 2018-10-11 Georgia-Pacific Nonwovens LLC Multi-layer unitary absorbent structures
WO2019067432A1 (en) 2017-09-27 2019-04-04 Georgia-Pacific Nonwovens LLC Nonwoven material with high core bicomponent fibers
WO2019067487A1 (en) 2017-09-27 2019-04-04 Georgia-Pacific Nonwovens LLC Nonwoven air filtration medium
WO2019178111A1 (en) 2018-03-12 2019-09-19 Georgia-Pacific Nonwovens LLC Nonwoven material with high core bicomponent fibers
WO2019183154A1 (en) 2018-03-22 2019-09-26 Buckman Laboratories International, Inc. Modified creping adhesive formulation and creping methods using same
WO2020061290A1 (en) 2018-09-19 2020-03-26 Georgia-Pacific Nonwovens LLC Unitary nonwoven material
WO2020240476A1 (en) 2019-05-30 2020-12-03 Georgia-Pacific Nonwovens LLC Low-runoff airlaid nonwoven materials
WO2021024200A1 (en) 2019-08-08 2021-02-11 Georgia-Pacific Nonwovens LLC Low-dust airlaid nonwoven materials
WO2021053588A1 (en) 2019-09-18 2021-03-25 Georgia-Pacific Mt. Holly Llc Absorbent nonwoven materials
CN113024806A (en) * 2021-03-10 2021-06-25 浙江理工大学 Low-chlorine environment-friendly PAE wet strength agent and synthesis method thereof
US11267218B2 (en) 2016-01-12 2022-03-08 Glatfelter Corporation Nonwoven cleaning substrate
CN114456362A (en) * 2022-02-17 2022-05-10 九洲生物技术(苏州)有限公司 Modifier for preparing multi-branched polymer biological latex and preparation method thereof

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1264943B (en) * 1964-01-18 1968-03-28 Bayer Ag Paper auxiliaries
CH451513A (en) * 1965-03-26 1968-05-15 Ciba Geigy Process for the preparation of new curable nitrogen-containing condensation products
JPS4825402B1 (en) * 1969-10-18 1973-07-28
GB1373788A (en) * 1971-10-20 1974-11-13 Hercules Powder Co Ltd Sizing method and composition for use therein
DE2162204B2 (en) * 1971-12-15 1980-08-28 Hoechst Ag, 6000 Frankfurt Sausage casing made of regenerated cellulose coated with thermoplastic synthetic resin for boil-proof sausage products
CH603738A5 (en) * 1972-07-25 1978-08-31 Hoechst Ag
US4133688A (en) * 1975-01-24 1979-01-09 Felix Schoeller, Jr. Photographic carrier material containing thermoplastic microspheres
US3982993A (en) * 1975-09-08 1976-09-28 Georgia-Pacific Corporation Preparation of a wax containing paper sheet
US4295931A (en) * 1976-03-08 1981-10-20 Hercules Incorporated Sizing method and sizing composition for use therein
CA1144691A (en) * 1977-08-19 1983-04-12 David H. Dumas Sizing accelerator
GB2043734B (en) * 1979-03-01 1983-08-17 Amf Inc Filter and method of making same
DE2949870A1 (en) * 1979-12-12 1981-06-19 Hoechst Ag, 6230 Frankfurt CONDENSATION PRODUCTS FOR INCREASING THE WET STRENGTH OF PAPER
DE3013320A1 (en) 1980-04-05 1981-10-15 Hoechst Ag, 6000 Frankfurt FOR FOODSTUFFS, IN PARTICULAR SAUSAGE PRODUCTS, TUBULAR SLEEVE SUITABLE WITH A STITCHED SEAM AND METHOD FOR THEIR PRODUCTION
DE3031630A1 (en) * 1980-08-22 1982-04-01 Akzo Gmbh, 5600 Wuppertal FUEL BRIQUETTES
DE3040279A1 (en) 1980-10-25 1982-06-16 Hoechst Ag, 6000 Frankfurt FOR FOODS, ESPECIALLY SAUSAGE PRODUCTS, TUBULAR SLEEVE SUITABLE WITH A STITCH SEAM, METHOD FOR THEIR PRODUCTION AND THEIR USE FOR THE PRODUCTION OF CURVED OR RING SHAPED SAUSAGES
US4403011A (en) 1980-12-18 1983-09-06 Ciba-Geigy Corporation Process for the treatment of wool containing material
DE3108795A1 (en) 1981-03-07 1982-09-16 Hoechst Ag, 6000 Frankfurt FOR FOODSTUFFS, ESPECIALLY SAUSAGE PRODUCTS, SUITABLE FIBER-REINFORCED HOSE COVER AND METHOD FOR THEIR PRODUCTION
DE3147989A1 (en) * 1981-12-04 1983-06-16 Hoechst Ag, 6230 Frankfurt DECORATIVE, IN PARTICULAR PLATE-SHAPED MOLDED PART, METHOD FOR THE PRODUCTION THEREOF AND THE USE THEREOF
DE3216437A1 (en) * 1982-05-03 1983-11-03 Hoechst Ag, 6230 Frankfurt GATHERED SAUSAGE CASE AND METHOD FOR THEIR PRODUCTION
DE3228514A1 (en) * 1982-07-30 1984-02-02 Hoechst Ag, 6230 Frankfurt EASILY SEALABLE SAUSAGE SLEEVE WITH A STITCH SEAM, METHOD FOR THEIR PRODUCTION AND THEIR USE
DE3306191A1 (en) * 1983-02-23 1984-08-23 Hoechst Ag, 6230 Frankfurt DRAWING MATERIAL
DE3306190A1 (en) * 1983-02-23 1984-08-23 Hoechst Ag, 6230 Frankfurt PLASTIC FILM
US4487884A (en) * 1983-04-27 1984-12-11 Hercules Incorporated Aqueous solution of cationic thermosetting resin from N-bis(aminopropyl)methylamine/oxalic acid
US4708772A (en) * 1983-04-27 1987-11-24 Hercules Incorporated Paper products containing wet strength resins
US4605709A (en) * 1983-04-27 1986-08-12 Hercules Incorporated Wet strength resin from methylbis(aminopropyl)amine, oxalic acid ester, saturated aliphatic diester and epihalohydrin
US4515657A (en) * 1983-04-27 1985-05-07 Hercules Incorporated Wet Strength resins
EP0144284A1 (en) * 1983-10-27 1985-06-12 Ciba-Geigy Ag Process for paper sizing with anionic, hydrophobic sizes and cationic retention agents
EP0175647A1 (en) * 1984-09-13 1986-03-26 Ciba-Geigy Ag Process for sizing paper or cardboard with anionic hydrophobic sizing agents and cationic retention agents
US4737239A (en) * 1984-09-13 1988-04-12 Ciba-Geigy Corporation Process for the manufacture of paper or cardboard which is sized under alkaline or neutral conditions with anionic hydrophobic sizing agents and cationic retention aids
GB2185499B (en) * 1986-01-18 1989-11-01 Bip Chemicals Ltd Treatment of cellulosic textile fabrics
DE3635235A1 (en) * 1986-10-16 1988-05-05 Basf Ag ALCOXYLATED AMID GROUP-CONTAINING POLYAMIDES AND THE USE THEREOF FOR BREAKING OIL-IN-WATER AND WATER-IN-OEL EMULSIONS
DE3822490A1 (en) * 1988-07-02 1990-01-04 Hoechst Ag WAFER SOLUTIONS OF POLYAMIDOAMINE-EPICHLORHYRIN RESINS, PROCESS FOR THEIR PREPARATION AND THEIR USE
AT392809B (en) * 1988-07-12 1991-06-25 Hamburger Ag W IMPREGNATING AGENT FOR PAPER AND METHOD FOR IMPREGNATING PAPER
CA2066378C (en) * 1991-04-24 2000-09-19 David J. Hardman Dehalogenation of organohalogen-containing compounds
FR2679573B1 (en) * 1991-07-25 1993-09-24 Perfojet Sa PROCESS FOR THE MANUFACTURE OF A WASHABLE, COTTON-BASED TABLECLOTH, AND TABLECLOTH THUS OBTAINED.
US5316623A (en) * 1991-12-09 1994-05-31 Hercules Incorporated Absorbance and permanent wet-strength in tissue and toweling paper
NL9302294A (en) * 1993-12-31 1995-07-17 Hercules Inc Method and composition for preparing wet-reinforced paper.
DE19516405A1 (en) * 1995-05-04 1996-11-07 Bayer Ag Process for producing structurally stable papers
DE19517047C2 (en) * 1995-05-10 1997-09-04 Henkel Kgaa Process for the preparation of crosslinked cation polymers and their use for paper treatment
US5972691A (en) * 1995-06-07 1999-10-26 Hercules Incorporated Dehalogenation of polyamine, neutral curing wet strength resins
US6027611A (en) * 1996-04-26 2000-02-22 Kimberly-Clark Worldwide, Inc. Facial tissue with reduced moisture penetration
CA2277131A1 (en) 1998-08-14 2000-02-14 Schweitzer-Mauduit International, Inc. Process for increasing the wet strength of porous plug wraps for use in smoking articles
EP1777247A3 (en) 1999-06-11 2007-10-03 Hercules Incorporated Reduced byproduct polyamidoamine-epihalohydrin resins
AU3066402A (en) 2000-12-09 2002-07-01 Hercules Inc Reduced byproduct high solids polyamine-epihalohydrin compositions
MXPA05008292A (en) * 2003-02-07 2006-03-21 Lanxess Corp Anionic functional promoter and charge control agent with improved wet to dry tensile strength ratio.
US7041197B2 (en) * 2003-04-15 2006-05-09 Fort James Corporation Wet strength and softness enhancement of paper products
US7081512B2 (en) 2003-05-21 2006-07-25 Hercules Incorporated Treatment of resins to lower levels of CPD-producing species and improve gelation stability
US7932349B2 (en) 2006-09-18 2011-04-26 Hercules Incorporated Membrane separation process for removing residuals polyamine-epihalohydrin resins
US8968517B2 (en) 2012-08-03 2015-03-03 First Quality Tissue, Llc Soft through air dried tissue
US9695552B2 (en) 2014-03-27 2017-07-04 Georgia-Pacific Chemicals Llc Wet strengthened fiber products, wet strengthening resins, and methods for making and using same
MX2016014887A (en) 2014-05-16 2018-03-01 First Quality Tissue Llc Flushable wipe and method of forming the same.
US9988763B2 (en) 2014-11-12 2018-06-05 First Quality Tissue, Llc Cannabis fiber, absorbent cellulosic structures containing cannabis fiber and methods of making the same
US10273635B2 (en) 2014-11-24 2019-04-30 First Quality Tissue, Llc Soft tissue produced using a structured fabric and energy efficient pressing
EP3221134A4 (en) 2014-12-05 2018-08-22 Structured I, LLC Manufacturing process for papermaking belts using 3d printing technology
MX2018004621A (en) 2015-10-13 2019-08-12 First Quality Tissue Llc Disposable towel produced with large volume surface depressions.
US10538882B2 (en) 2015-10-13 2020-01-21 Structured I, Llc Disposable towel produced with large volume surface depressions
CN109328166A (en) 2015-10-14 2019-02-12 上品纸制品有限责任公司 The system and method for being bundled product and forming bundle product
CN109154143A (en) 2016-02-11 2019-01-04 结构 I 有限责任公司 The band or fabric including polymeric layer for paper machine
US20170314206A1 (en) 2016-04-27 2017-11-02 First Quality Tissue, Llc Soft, low lint, through air dried tissue and method of forming the same
EP3504378B1 (en) 2016-08-26 2022-04-20 Structured I, LLC Method of producing absorbent structures with high wet strength, absorbency, and softness
CA3036821A1 (en) 2016-09-12 2018-03-15 Structured I, Llc Former of water laid asset that utilizes a structured fabric as the outer wire
US11583489B2 (en) 2016-11-18 2023-02-21 First Quality Tissue, Llc Flushable wipe and method of forming the same
US10619309B2 (en) 2017-08-23 2020-04-14 Structured I, Llc Tissue product made using laser engraved structuring belt
DE102018114748A1 (en) 2018-06-20 2019-12-24 Voith Patent Gmbh Laminated paper machine clothing
US11738927B2 (en) 2018-06-21 2023-08-29 First Quality Tissue, Llc Bundled product and system and method for forming the same
US11697538B2 (en) 2018-06-21 2023-07-11 First Quality Tissue, Llc Bundled product and system and method for forming the same
US11098453B2 (en) 2019-05-03 2021-08-24 First Quality Tissue, Llc Absorbent structures with high absorbency and low basis weight
WO2022133257A1 (en) 2020-12-17 2022-06-23 First Quality Tissue, Llc Wet laid disposable absorent structures with high wet strenght and method of making the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB610311A (en) * 1944-07-28 1948-10-14 Sidney James Allen Improvements in the production of basic polyamides
US2595935A (en) * 1946-08-03 1952-05-06 American Cyanamid Co Wet strength paper and process for the production thereof
CA529729A (en) * 1956-08-28 C. Haas Howard Substituted synthetic linear polymers and their preparation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1066741B (en) * 1959-10-08 Dipl.-Chem. Edith Behnke, Hamburg-Harburg Process for the production of water-insoluble, fusible synthetic resins
US3049469A (en) * 1957-11-07 1962-08-14 Hercules Powder Co Ltd Application of coating or impregnating materials to fibrous material
BE434794A (en) * 1938-06-10
DE758619C (en) * 1940-07-19 1953-01-05 Ig Farbenindustrie Ag Process for the production of polyamides
US2601597A (en) * 1946-09-06 1952-06-24 American Cyanamid Co Application of dispersed coating materials to cellulosic fibers
US2969302A (en) * 1957-02-14 1961-01-24 Nalco Chemical Co Method of making paper
NL231136A (en) * 1957-09-05

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA529729A (en) * 1956-08-28 C. Haas Howard Substituted synthetic linear polymers and their preparation
GB610311A (en) * 1944-07-28 1948-10-14 Sidney James Allen Improvements in the production of basic polyamides
US2595935A (en) * 1946-08-03 1952-05-06 American Cyanamid Co Wet strength paper and process for the production thereof

Cited By (366)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3483077A (en) * 1957-09-05 1969-12-09 Hercules Inc Process of forming paper containing additaments and polyamide - epichlorohydrin resin
US3066066A (en) * 1958-03-27 1962-11-27 Hercules Powder Co Ltd Mineral fiber products and method of preparing same
US3058873A (en) * 1958-09-10 1962-10-16 Hercules Powder Co Ltd Manufacture of paper having improved wet strength
US3103462A (en) * 1960-04-18 1963-09-10 Eastman Kodak Co Method of improving the strength characteristics of paper prepared from partially acylated cellulose fibers
US3132944A (en) * 1960-04-18 1964-05-12 Eastman Kodak Co Photographic paper prepared from partially acylated cellulose fibers
US3212961A (en) * 1961-10-23 1965-10-19 Hercules Powder Co Ltd Pretreatment of paper pulp with ketene dimer in improving sizeability
US3146158A (en) * 1962-04-30 1964-08-25 Kimberly Clark Co Inhibiting foaming of cellulose slurries containing wet strength resins
US3278561A (en) * 1962-06-15 1966-10-11 Monsanto Co Hydrophobic diglycidylamines
US3186900A (en) * 1962-07-13 1965-06-01 Hercules Powder Co Ltd Sizing paper under substantially neutral conditions with a preblend of rosin and cationic polyamide-epichlorohydrin resin
US3248280A (en) * 1963-07-29 1966-04-26 Owens Illinois Inc Cellulosic and wool materials containing a reaction product of epichlorohydrin and a polyamide derived from polyalkylene polyamine with a mixture of polymeric fatty acid and dibasic carboxylic acid
US3250664A (en) * 1963-10-24 1966-05-10 Scott Paper Co Process of preparing wet strength paper containing ph independent nylon-type resins
US3372085A (en) * 1965-04-14 1968-03-05 Union Carbide Corp Water-soluble polyalkylenepolyamine/urethane resins and application thereof in production of wet strength paper
US3372086A (en) * 1965-04-14 1968-03-05 Union Carbide Corp Water-soluble polyalkylenepolyamine/dialdehyde resins and application thereof in production of wet strength paper
US3462383A (en) * 1966-03-07 1969-08-19 Dow Chemical Co Wet strength additives for cellulosic products
US3420735A (en) * 1967-03-31 1969-01-07 Scott Paper Co Wet-strength resins and a process for improving the wet-strength of paper
US3640840A (en) * 1968-03-27 1972-02-08 Bayer Ag Component reaction product and process for increasing the wet strength of paper
US3692092A (en) * 1968-06-13 1972-09-19 Dow Chemical Co Paper containing a polyethylenimine-fatty acid epichlorohydrin product
US3915711A (en) * 1970-08-07 1975-10-28 Fuji Photo Film Co Ltd Subbing layer photographic films with adhesive
US3728215A (en) * 1971-03-12 1973-04-17 Hercules Inc Aminopalyamide{13 acrylamide{13 polyaldehyde resins employing an alpha, beta-unsaturated monobasic carboxylic acid or ester to make the aminopolyamide and their utility as wet and dry strengthening agents in papermaking
US3874877A (en) * 1971-07-30 1975-04-01 Fuji Photo Film Co Ltd Subbing method for photographic film support
US3980769A (en) * 1972-09-05 1976-09-14 L'oreal Shampoo containing a water-soluble cationic polymer
US3914155A (en) * 1972-09-07 1975-10-21 Georgia Pacific Corp Polyamide/formaldehyde/epichlorohydrin wet strength resins and use thereof in production of wet strength paper
US4109053A (en) * 1973-11-05 1978-08-22 Hercules Incorporated Sizing paper with stable dispersions of hydrocarbon resins
US4017431A (en) * 1973-11-28 1977-04-12 Hercules Incorporated Aqueous dispersions of wax blends and a water-soluble cationic resin and paper sized therewith
US4172887A (en) * 1973-11-30 1979-10-30 L'oreal Hair conditioning compositions containing crosslinked polyaminopolyamides
US4277581A (en) * 1973-11-30 1981-07-07 L'oreal Polyamino-polyamide crosslinked with crosslinking agent
US4189468A (en) * 1973-11-30 1980-02-19 L'oreal Crosslinked polyamino-polyamide in hair conditioning compositions
US4273892A (en) * 1974-11-05 1981-06-16 Hercules Incorporated Preparation of hydrophilic polyolefin fibers for use in papermaking
US3962159A (en) * 1975-02-03 1976-06-08 National Starch And Chemical Corporation Graft copolymers of a polyamideamine substrate and starch, and method of making same
US3996146A (en) * 1975-08-01 1976-12-07 Warner-Lambert Company Clear shampoo formulation
US4156628A (en) * 1976-01-28 1979-05-29 Hercules Incorporated Preparation of hydrophilic polyolefin fibers for use in papermaking
US4201766A (en) * 1977-03-02 1980-05-06 L'oreal Hair conditioning composition and method of using the same
US4154646A (en) * 1977-07-22 1979-05-15 Hercules Incorporated Preparation of hydrophilic styrene maleic anhydride copolymer fibers for use in papermaking
US4317756A (en) * 1977-08-19 1982-03-02 Hercules Incorporated Sizing composition comprising a hydrophobic cellulose-reactive sizing agent and a cationic polymer
US4240935A (en) * 1978-12-22 1980-12-23 Hercules Incorporated Ketene dimer paper sizing compositions
US4263182A (en) * 1979-09-06 1981-04-21 Hercules Incorporated Stable dispersions of fortified rosin
US4708803A (en) * 1980-10-27 1987-11-24 Cuno Incorporated Liquid filtration using hydrophilic cationic isotropic microporous nylon membrane
US4673504A (en) * 1980-10-27 1987-06-16 Cuno Inc. Charge modified microporous membrane
US4473474A (en) * 1980-10-27 1984-09-25 Amf Inc. Charge modified microporous membrane, process for charge modifying said membrane and process for filtration of fluid
US4711793A (en) * 1980-10-27 1987-12-08 Cuno Incorporated Process for charge modifying a microphorous membrane
US4347339A (en) * 1981-05-08 1982-08-31 Nalco Chemical Company Cationic block copolymers
US4743418A (en) * 1981-05-29 1988-05-10 Cuno Incorporated Process for charge modifying a microporous membrane
US4737291A (en) * 1981-05-29 1988-04-12 Cuno Incorporated Charge modified microporous membrane
US4478682A (en) * 1981-07-02 1984-10-23 Hercules Incorporated Sizing method and sizing composition for use therein
US4523995A (en) * 1981-10-19 1985-06-18 Pall Corporation Charge-modified microfiber filter sheets
JPS6130804B2 (en) * 1982-02-05 1986-07-16 Pall Corp
JPS58146408A (en) * 1982-02-05 1983-09-01 ポ−ル・コ−ポレ−シヨン Polyamide membrane having controlled surface property
WO1984003055A1 (en) 1983-02-07 1984-08-16 Univ Yale Transfer of macromolecules from a chromatographic substrate to an immobilizing matrix
US4689374A (en) * 1983-06-09 1987-08-25 W. R. Grace & Co. Water soluble polyamidoaminepolyamine having weight average molecular weight of at least 5×105
DE3328463A1 (en) * 1983-08-06 1985-02-21 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück PHOTOGRAPHIC PAPER CARRIER
US4980067A (en) * 1985-07-23 1990-12-25 Cuno, Inc. Polyionene-transformed microporous membrane
US4839415A (en) * 1986-05-10 1989-06-13 Akzo N.V. Paper sizing agents, the manufacture and use of same
US4714736A (en) * 1986-05-29 1987-12-22 The Dow Chemical Company Stable polyamide solutions
US4722964A (en) * 1986-06-20 1988-02-02 Borden, Inc. Epoxidized polyalkyleneamine-amide wet strength resin
US5131981A (en) * 1987-09-30 1992-07-21 Basf Aktiengesellschaft Coloring paper
US5004543A (en) * 1988-06-21 1991-04-02 Millipore Corporation Charge-modified hydrophobic membrane materials and method for making the same
US5017642A (en) * 1988-12-23 1991-05-21 Sumitomo Chemical Company, Limited Process for producing aqueous solution of cationic thermosetting resin
US5269921A (en) * 1989-04-11 1993-12-14 Seitz-Filter-Werke Gmbh & Co. Filter cartridge or filter module consisting of flexible deep filter material
EP0469891A1 (en) * 1990-08-01 1992-02-05 Hercules Incorporated Process for the production of improved polyaminopolyamide epichlorohydrin resins
US5171795A (en) * 1990-08-01 1992-12-15 Hercules Incorporated Process for the production of improved polyaminopolyamide epichlorohydrin resins
US5239047A (en) * 1990-08-24 1993-08-24 Henkel Corporation Wet strength resin composition and method of making same
US5364927A (en) * 1990-08-24 1994-11-15 Henkel Corporation Wet strength resin composition and method of making same
US5189142A (en) * 1990-08-24 1993-02-23 Henkel Corporation Wet strength resin composition and method of making same
US5714552A (en) * 1990-11-30 1998-02-03 Hercules Incorporated Process for making epichlorohydrin resins
US5668246A (en) * 1990-12-31 1997-09-16 Hercules Incorporated Synthesis of high solids-content wet-strength resin
US5644021A (en) * 1990-12-31 1997-07-01 Hercules Incorporated Synthesis of high solids-content wet-strength resin
US5213588A (en) * 1992-02-04 1993-05-25 The Procter & Gamble Company Abrasive wiping articles and a process for preparing such articles
US6143132A (en) * 1992-04-06 2000-11-07 Bayer Aktiengesellschaft Process for imparting wet strength to paper
US5256727A (en) * 1992-04-30 1993-10-26 Georgia-Pacific Resins, Inc. Resins with reduced epichlorohydrin hydrolyzates
US5523019A (en) * 1992-12-09 1996-06-04 E. F. Houghton & Company Defoamer composition
US5912306A (en) * 1992-12-30 1999-06-15 Hercules Incorporated Cationic compounds useful as drainage aids and stabilizers for rosin-based sizing agents
US5439010A (en) * 1993-01-06 1995-08-08 Dexter Speciality Materials Ltd. Fibrous bonded sheet material
US7186923B2 (en) 1993-05-17 2007-03-06 Electrochemicals, Inc. Printed wiring boards and methods for making them
US20040084321A1 (en) * 1993-05-17 2004-05-06 Thorn Charles Edwin Printed wiring boards and methods for making them
US6710259B2 (en) 1993-05-17 2004-03-23 Electrochemicals, Inc. Printed wiring boards and methods for making them
US6303181B1 (en) 1993-05-17 2001-10-16 Electrochemicals Inc. Direct metallization process employing a cationic conditioner and a binder
US5719239A (en) * 1993-06-25 1998-02-17 Georgia-Pacific Resins, Inc. Top coated cellulosic panel
US5391340A (en) * 1993-06-25 1995-02-21 Georgia-Pacific Resins, Inc. Method of manufacture of top coated cellulosic panel
EP0651038A3 (en) * 1993-10-29 1995-11-02 Sun Chemical Corp Heatset security ink.
US5374334A (en) * 1993-12-06 1994-12-20 Nalco Chemical Company Class of polymeric adhesives for yankee dryer applications
US5858535A (en) * 1994-02-17 1999-01-12 The Procter & Gamble Company Absorbent articles comprising absorbent members comprising absorbent materials having improved absorbent property
US6099950A (en) * 1994-02-17 2000-08-08 The Procter & Gamble Company Absorbent materials having improved absorbent property and methods for making the same
US5985432A (en) * 1994-02-17 1999-11-16 The Procter & Gamble Company Porous absorbent materials having modified surface characteristics and methods for making the same
US5843575A (en) * 1994-02-17 1998-12-01 The Procter & Gamble Company Absorbent members comprising absorbent material having improved absorbent property
US5531797A (en) * 1994-03-07 1996-07-02 Basf Aktiengesellschaft Aqueous dye preparations containing coumarin dyes
US5656699A (en) * 1994-04-18 1997-08-12 Hercules Incorporated Oligoamide-epichlorohydrin resins as drainage aids
US5529665A (en) * 1994-08-08 1996-06-25 Kimberly-Clark Corporation Method for making soft tissue using cationic silicones
US5591306A (en) * 1994-08-08 1997-01-07 Kimberly-Clark Corporation Method for making soft tissue using cationic silicones
US5849405A (en) * 1994-08-31 1998-12-15 The Procter & Gamble Company Absorbent materials having improved absorbent property and methods for making the same
US5585456A (en) * 1994-09-12 1996-12-17 Georgia-Pacific Resins, Inc. Repulpable wet strength resins for paper and paperboard
US5567798A (en) * 1994-09-12 1996-10-22 Georgia-Pacific Resins, Inc. Repulpable wet strength resins for paper and paperboard
US5980690A (en) * 1994-12-08 1999-11-09 Hercules Incorporated Creping adhesives containing oxazoline polymers and methods of use thereof
US5858171A (en) * 1994-12-08 1999-01-12 Hercules Incorporated Methods for manufacturing paper using creping adhesives containing oxazoline polymers
US5602209A (en) * 1994-12-08 1997-02-11 Houghton International, Inc. Creping adhesive containing oxazoline polymers
US5837768A (en) * 1994-12-08 1998-11-17 Hercules Incorporated Creping adhesives containing oxazoline polymers and methods of use thereof
US5633309A (en) * 1994-12-08 1997-05-27 Houghton International, Inc. Creping adhesives containing oxazoline polymers
US5614597A (en) * 1994-12-14 1997-03-25 Hercules Incorporated Wet strength resins having reduced levels of organic halogen by-products
EP0717146A2 (en) 1994-12-14 1996-06-19 Hercules Incorporated Wet strength resins having reduced levels of organic halogen by-products
US6815497B1 (en) 1995-05-18 2004-11-09 Fort James Corporation Crosslinkable creping adhesive formulations
US6663942B1 (en) 1995-05-18 2003-12-16 Fort James Corporation Crosslinkable creping adhesive formulations applied to a dryer surface or to a cellulosic fiber
US6689250B1 (en) 1995-05-18 2004-02-10 Fort James Corporation Crosslinkable creping adhesive formulations
US6699359B1 (en) 1995-05-18 2004-03-02 Fort James Corporation Crosslinkable creping adhesive formulations
US6812281B2 (en) 1995-05-18 2004-11-02 Fort James Corporation Crosslinkable creping adhesive formulations
US5730839A (en) * 1995-07-21 1998-03-24 Kimberly-Clark Worldwide, Inc. Method of creping tissue webs containing a softener using a closed creping pocket
US5552020A (en) * 1995-07-21 1996-09-03 Kimberly-Clark Corporation Tissue products containing softeners and silicone glycol
US6156157A (en) * 1995-07-21 2000-12-05 Kimberly-Clark Worldwide, Inc. Method for making soft tissue with improved bulk softness and surface softness
US5786429A (en) * 1996-04-18 1998-07-28 Hercules Incorporated Highly branched polyamidoamines and their preparation
US5902862A (en) * 1996-04-18 1999-05-11 Hercules Incorporated Highly branched polyamidoamines and their preparation
US6080279A (en) * 1996-05-14 2000-06-27 Kimberly-Clark Worldwide, Inc. Air press for dewatering a wet web
US6143135A (en) * 1996-05-14 2000-11-07 Kimberly-Clark Worldwide, Inc. Air press for dewatering a wet web
US6096169A (en) * 1996-05-14 2000-08-01 Kimberly-Clark Worldwide, Inc. Method for making cellulosic web with reduced energy input
US6083346A (en) * 1996-05-14 2000-07-04 Kimberly-Clark Worldwide, Inc. Method of dewatering wet web using an integrally sealed air press
US6228220B1 (en) 1996-05-14 2001-05-08 Kimberly-Clark Worldwide, Inc. Air press method for dewatering a wet web
US5990333A (en) * 1996-06-19 1999-11-23 Hercules Incorporated Silyl-linked polyamidoamines and their preparation
US5747125A (en) * 1996-07-18 1998-05-05 Viskase Corporation Fibrous composite cellulosic film and method
US5904808A (en) * 1996-09-16 1999-05-18 Hercules Incorporated Processes and compositions for repulping wet strength paper and paper products
US5935383A (en) * 1996-12-04 1999-08-10 Kimberly-Clark Worldwide, Inc. Method for improved wet strength paper
US6429253B1 (en) 1997-02-14 2002-08-06 Bayer Corporation Papermaking methods and compositions
US7955670B2 (en) 1997-02-26 2011-06-07 Dixie Consumer Products Llc Paperboard containers having improved bulk insulation properties
US20070215678A1 (en) * 1997-02-26 2007-09-20 Dixie Consumer Products Llc Paperboard containers having improved bulk insulation properties
US6740373B1 (en) 1997-02-26 2004-05-25 Fort James Corporation Coated paperboards and paperboard containers having improved tactile and bulk insulation properties
US6919111B2 (en) 1997-02-26 2005-07-19 Fort James Corporation Coated paperboards and paperboard containers having improved tactile and bulk insulation properties
US6165322A (en) * 1997-07-29 2000-12-26 Hercules Incorporated Polyamidoamine/epichlorohydrin resins bearing polyol sidechains as dry strength agents
US6346170B1 (en) 1997-07-29 2002-02-12 Hercules Incorporated Polyamidoamine/epichlorohydrin resins bearing polyol sidechains as dry strength agents
US6171441B1 (en) 1997-09-29 2001-01-09 Buckeye Technologies Inc. Resin-treated mercerized fibers and products thereof
US6331230B1 (en) 1997-10-31 2001-12-18 Kimberly-Clark Worldwide, Inc. Method for making soft tissue
US6197154B1 (en) 1997-10-31 2001-03-06 Kimberly-Clark Worldwide, Inc. Low density resilient webs and methods of making such webs
US6187137B1 (en) 1997-10-31 2001-02-13 Kimberly-Clark Worldwide, Inc. Method of producing low density resilient webs
US6149767A (en) * 1997-10-31 2000-11-21 Kimberly-Clark Worldwide, Inc. Method for making soft tissue
US5908889A (en) * 1997-12-03 1999-06-01 Nalco Chemical Company Polyamide binders for ceramics manufacture
US6075082A (en) * 1997-12-03 2000-06-13 Nalco Chemical Company Cross-linked polymide binders for ceramics manufacture
US6355137B1 (en) 1997-12-31 2002-03-12 Hercules Incorporated Repulpable wet strength paper
US6429267B1 (en) 1997-12-31 2002-08-06 Hercules Incorporated Process to reduce the AOX level of wet strength resins by treatment with base
US6315865B1 (en) 1998-02-27 2001-11-13 Hercules Incorporated Silyl-linked polyamidoamine and their preparation
US6306257B1 (en) 1998-06-17 2001-10-23 Kimberly-Clark Worldwide, Inc. Air press for dewatering a wet web
US6635146B2 (en) 1998-07-08 2003-10-21 Kimberly-Clark Worldwide, Inc. Enzymatic treatment of pulp to increase strength using truncated hydrolytic enzymes
US6579418B2 (en) 1998-08-12 2003-06-17 Kimberly-Clark Worldwide, Inc. Leakage control system for treatment of moving webs
US6194057B1 (en) 1998-11-12 2001-02-27 Paper Technology Foundation Inc. Partially impregnated lignocellulosic materials
WO2000029670A1 (en) * 1998-11-12 2000-05-25 Paper Technology Foundation Inc. Strengthening compositions and treatments for lignocellulosic materials
US6537615B2 (en) 1998-11-12 2003-03-25 Paper Technology Foundation Inc. Steam-assisted paper impregnation
US6537616B2 (en) 1998-11-12 2003-03-25 Paper Technology Foundation Inc. Stam-assisted paper impregnation
US6114471A (en) * 1998-11-12 2000-09-05 The Proctor & Gamble Company Strengthening compositions and treatments for lignocellulosic materials
US6361651B1 (en) 1998-12-30 2002-03-26 Kimberly-Clark Worldwide, Inc. Chemically modified pulp fiber
US6620295B2 (en) 1999-01-25 2003-09-16 Kimberly-Clark Worldwide, Inc. Modified polysaccharides containing amphiphilic hydrocarbon moieties
US6596126B1 (en) 1999-01-25 2003-07-22 Kimberly-Clark Worldwide, Inc. Modified polysaccharides containing aliphatic hydrocarbon moieties
US6896769B2 (en) 1999-01-25 2005-05-24 Kimberly-Clark Worldwide, Inc. Modified condensation polymers containing azetidinium groups in conjunction with amphiphilic hydrocarbon moieties
US6461518B1 (en) 1999-03-03 2002-10-08 Nalco Chemical Company Method for inhibiting the formation and deposition of silica scale in water systems
US6153106A (en) * 1999-03-03 2000-11-28 Nalco Chemical Company Method for inhibiting the formation and deposition of silica scale in water systems
US6586520B1 (en) 1999-07-08 2003-07-01 Hercules Incorporated Compositions for imparting desired properties to materials
US20040020565A1 (en) * 1999-07-08 2004-02-05 Ge Betz, Inc. Non-chromate conversion coating treatment for metals
US7344607B2 (en) 1999-07-08 2008-03-18 Ge Betz, Inc. Non-chromate conversion coating treatment for metals
US6318727B1 (en) 1999-11-05 2001-11-20 Kimberly-Clark Worldwide, Inc. Apparatus for maintaining a fluid seal with a moving substrate
US6306464B2 (en) 1999-12-09 2001-10-23 Paper Technology Foundation Inc Strengthening compositions and treatments for lignocellulosic materials
US6211357B1 (en) 1999-12-09 2001-04-03 Paper Technology Foundation, Inc. Strengthening compositions and treatments for lignocellulosic materials
US6458419B2 (en) 1999-12-17 2002-10-01 Paper Technology Foundation Inc. Methods for the reduction of bleeding of lignosulfonates from lignosulfonate-treated substrates
US6281350B1 (en) 1999-12-17 2001-08-28 Paper Technology Foundation Inc. Methods for the reduction of bleeding of lignosulfonates from lignosulfonate-treated substrates
US6465602B2 (en) 2000-01-20 2002-10-15 Kimberly-Clark Worldwide, Inc. Modified condensation polymers having azetidinium groups and containing polysiloxane moieties
US6517678B1 (en) 2000-01-20 2003-02-11 Kimberly-Clark Worldwide, Inc. Modified polysaccharides containing amphiphillic hydrocarbon moieties
US6398911B1 (en) 2000-01-21 2002-06-04 Kimberly-Clark Worldwide, Inc. Modified polysaccharides containing polysiloxane moieties
US6352613B1 (en) 2000-03-14 2002-03-05 Hercules Incorporated Resin compositions having high solids contents
US6677427B1 (en) 2000-06-13 2004-01-13 Hercules Incorporated Enzyme-catalyzed polyamides and compositions and processes of preparing and using the same
WO2001096588A3 (en) * 2000-06-13 2002-03-21 Hercules Inc Enzyme-catalyzed polyamides and compositions and processes of preparing and using the same
WO2001096588A2 (en) * 2000-06-13 2001-12-20 Hercules Incorporated Enzyme-catalyzed polyamides and compositions and processes of preparing and using the same
US7317053B1 (en) 2000-07-10 2008-01-08 Hercules Incorporated Compositions for imparting desired properties to materials
US6336995B1 (en) 2000-07-26 2002-01-08 Vulcan Materials, Inc. Cross linked polyamide-ephalohydrin creping additives
US20020117280A1 (en) * 2000-08-04 2002-08-29 Matthew Howle Fibrous sheet enhancement
US20030079847A1 (en) * 2000-08-04 2003-05-01 Armstrong World Industries, Inc. Fibrous sheet enhancement
US6500912B1 (en) 2000-09-12 2002-12-31 Resolution Performance Products Llc Epoxy resin system
US6808595B1 (en) 2000-10-10 2004-10-26 Kimberly-Clark Worldwide, Inc. Soft paper products with low lint and slough
US20040149411A1 (en) * 2001-06-11 2004-08-05 Krueger Ellen Wet-strength finishing agents for paper
US8025767B2 (en) 2001-06-11 2011-09-27 Basf Aktiengesellschaft Wet strength enhancers for paper
US20030077314A1 (en) * 2001-08-30 2003-04-24 Kimberly-Clark Worldwide, Inc. Tissue products containing a flexible binder
US6893537B2 (en) 2001-08-30 2005-05-17 Kimberly-Clark Worldwide, Inc. Tissue products containing a flexible binder
US20030121627A1 (en) * 2001-12-03 2003-07-03 Sheng-Hsin Hu Tissue products having reduced lint and slough
US20030118848A1 (en) * 2001-12-21 2003-06-26 Kou-Chang Liu Method for the application of hydrophobic chemicals to tissue webs
US6805965B2 (en) 2001-12-21 2004-10-19 Kimberly-Clark Worldwide, Inc. Method for the application of hydrophobic chemicals to tissue webs
US6906133B2 (en) 2002-01-07 2005-06-14 Hercules Incorporated Polyalkyldiallylamine-epihalohydrin resins as wet strength additives for papermaking and process for making the same
US20030166791A1 (en) * 2002-01-07 2003-09-04 Fang Deng Polyalkyldiallylamine-epihalohydrin resins as wet strength additives for papermaking and process for making the same
US7959761B2 (en) 2002-04-12 2011-06-14 Georgia-Pacific Consumer Products Lp Creping adhesive modifier and process for producing paper products
US20110218271A1 (en) * 2002-04-12 2011-09-08 Georgia-Pacific Consumer Products Lp Creping adhesive modifier and process for producing paper products
US8231761B2 (en) 2002-04-12 2012-07-31 Georgia-Pacific Consumer Products Lp Creping adhesive modifier and process for producing paper products
US20050006040A1 (en) * 2002-04-12 2005-01-13 Boettcher Jeffery J. Creping adhesive modifier and process for producing paper products
US20050282988A1 (en) * 2002-05-13 2005-12-22 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Orego Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
US20070218307A1 (en) * 2002-05-13 2007-09-20 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Orego Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
US7060798B2 (en) 2002-05-13 2006-06-13 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Oregon State University Modified protein adhesives and lignocellulosic composites made from the adhesives
US20060156954A1 (en) * 2002-05-13 2006-07-20 State Of Or. Acting By & Through The Or. State Board Of Higher Edu. On Behalf Of Or. State Univ. Modified protein adhesives and lignocellulosic composites made from the adhesives
US8268102B2 (en) 2002-05-13 2012-09-18 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Oregon State University Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
US20040089418A1 (en) * 2002-05-13 2004-05-13 State Board Of Higher Education On Behalf Of Oregon State University Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
US7785440B2 (en) 2002-05-13 2010-08-31 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Oregon State University Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
US7393930B2 (en) 2002-05-13 2008-07-01 State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University Modified protein adhesives and lignocellulosic composites made from the adhesives
US7252735B2 (en) 2002-05-13 2007-08-07 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Oregon State University Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
US8328985B2 (en) 2002-10-07 2012-12-11 Georgia-Pacific Consumer Products Lp Method of making a fabric-creped absorbent cellulosic sheet
US7494563B2 (en) 2002-10-07 2009-02-24 Georgia-Pacific Consumer Products Lp Fabric creped absorbent sheet with variable local basis weight
US20080029235A1 (en) * 2002-10-07 2008-02-07 Georgia-Pacific Consumer Products Lp Fabric creped absorbent sheet with variable local basis weight
US8398818B2 (en) 2002-10-07 2013-03-19 Georgia-Pacific Consumer Products Lp Fabric-creped absorbent cellulosic sheet having a variable local basis weight
US8394236B2 (en) 2002-10-07 2013-03-12 Georgia-Pacific Consumer Products Lp Absorbent sheet of cellulosic fibers
US8524040B2 (en) 2002-10-07 2013-09-03 Georgia-Pacific Consumer Products Lp Method of making a belt-creped absorbent cellulosic sheet
EP1985754A2 (en) 2002-10-07 2008-10-29 Georgia-Pacific Consumer Products LP Method of making a belt-creped cellulosic sheet
US8603296B2 (en) 2002-10-07 2013-12-10 Georgia-Pacific Consumer Products Lp Method of making a fabric-creped absorbent cellulosic sheet with improved dispensing characteristics
US8636874B2 (en) 2002-10-07 2014-01-28 Georgia-Pacific Consumer Products Lp Fabric-creped absorbent cellulosic sheet having a variable local basis weight
US8398820B2 (en) 2002-10-07 2013-03-19 Georgia-Pacific Consumer Products Lp Method of making a belt-creped absorbent cellulosic sheet
US8257552B2 (en) 2002-10-07 2012-09-04 Georgia-Pacific Consumer Products Lp Fabric creped absorbent sheet with variable local basis weight
US20090120598A1 (en) * 2002-10-07 2009-05-14 Edwards Steven L Fabric creped absorbent sheet with variable local basis weight
US8673115B2 (en) 2002-10-07 2014-03-18 Georgia-Pacific Consumer Products Lp Method of making a fabric-creped absorbent cellulosic sheet
US8778138B2 (en) 2002-10-07 2014-07-15 Georgia-Pacific Consumer Products Lp Absorbent cellulosic sheet having a variable local basis weight
US8152957B2 (en) 2002-10-07 2012-04-10 Georgia-Pacific Consumer Products Lp Fabric creped absorbent sheet with variable local basis weight
US9371615B2 (en) 2002-10-07 2016-06-21 Georgia-Pacific Consumer Products Lp Method of making a fabric-creped absorbent cellulosic sheet
US20110011545A1 (en) * 2002-10-07 2011-01-20 Edwards Steven L Fabric creped absorbent sheet with variable local basis weight
US8911592B2 (en) 2002-10-07 2014-12-16 Georgia-Pacific Consumer Products Lp Multi-ply absorbent sheet of cellulosic fibers
US9279219B2 (en) 2002-10-07 2016-03-08 Georgia-Pacific Consumer Products Lp Multi-ply absorbent sheet of cellulosic fibers
US8980052B2 (en) 2002-10-07 2015-03-17 Georgia-Pacific Consumer Products Lp Method of making a fabric-creped absorbent cellulosic sheet
US6929714B2 (en) 2002-10-08 2005-08-16 Kimberly-Clark Worldwide, Inc. Tissue products having reduced slough
US6752905B2 (en) 2002-10-08 2004-06-22 Kimberly-Clark Worldwide, Inc. Tissue products having reduced slough
US20040065422A1 (en) * 2002-10-08 2004-04-08 Kimberly-Clark Worldwide, Inc. Tissue products having reduced slough
US20040194901A1 (en) * 2002-10-08 2004-10-07 Sheng-Hsin Hu Tissue products having reduced slough
US6977026B2 (en) 2002-10-16 2005-12-20 Kimberly-Clark Worldwide, Inc. Method for applying softening compositions to a tissue product
US20040074622A1 (en) * 2002-10-16 2004-04-22 Kou-Chang Liu Method for applying softening compositions to a tissue product
US6761800B2 (en) 2002-10-28 2004-07-13 Kimberly-Clark Worldwide, Inc. Process for applying a liquid additive to both sides of a tissue web
US20040079502A1 (en) * 2002-10-28 2004-04-29 Kimberly-Clark Worldwide,Inc. Process for applying a liquid additive to both sides of a tissue web
US6964725B2 (en) 2002-11-06 2005-11-15 Kimberly-Clark Worldwide, Inc. Soft tissue products containing selectively treated fibers
US20040087237A1 (en) * 2002-11-06 2004-05-06 Kimberly-Clark Worldwide, Inc. Tissue products having reduced lint and slough
US6861380B2 (en) 2002-11-06 2005-03-01 Kimberly-Clark Worldwide, Inc. Tissue products having reduced lint and slough
US20040086726A1 (en) * 2002-11-06 2004-05-06 Moline David Andrew Soft tissue hydrophilic tissue products containing polysiloxane and having unique absorbent properties
US20040084165A1 (en) * 2002-11-06 2004-05-06 Shannon Thomas Gerard Soft tissue products containing selectively treated fibers
US7029756B2 (en) 2002-11-06 2006-04-18 Kimberly-Clark Worldwide, Inc. Soft tissue hydrophilic tissue products containing polysiloxane and having unique absorbent properties
US6808600B2 (en) 2002-11-08 2004-10-26 Kimberly-Clark Worldwide, Inc. Method for enhancing the softness of paper-based products
US20040089429A1 (en) * 2002-11-08 2004-05-13 Kimberly-Clark Worldwide, Inc. Method for enhancing the softness of paper-based products
US20060016570A1 (en) * 2002-11-27 2006-01-26 Kou-Chang Liu Soft paper product including beneficial agents
US7101460B2 (en) 2002-11-27 2006-09-05 Kimberly-Clark Worldwide, Inc. Soft paper product including beneficial agents
US6949168B2 (en) 2002-11-27 2005-09-27 Kimberly-Clark Worldwide, Inc. Soft paper product including beneficial agents
US20040099392A1 (en) * 2002-11-27 2004-05-27 Kimberly-Clark Worldwide, Inc. Soft paper product including beneficial agents
US20040112558A1 (en) * 2002-12-13 2004-06-17 Kimberly-Clark Worldwide, Inc. Tissue products having enhanced strength
US6887350B2 (en) 2002-12-13 2005-05-03 Kimberly-Clark Worldwide, Inc. Tissue products having enhanced strength
US7265169B2 (en) 2003-03-20 2007-09-04 State of Oregon Acting by and trhough the State Board of Higher Education on Behalf of Oregon State University Adhesive compositions and methods of using and making the same
US20040220368A1 (en) * 2003-03-20 2004-11-04 State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Adhesive compositions and methods of using and making the same
US7344621B2 (en) 2003-03-24 2008-03-18 Nof Corporation Paper additive composition and method for producing paper using the same
EP1500744A3 (en) * 2003-03-24 2005-02-02 Nof Corporation Paper-making additive and method for producing paper
EP1500744A2 (en) * 2003-03-24 2005-01-26 Nof Corporation Paper-making additive and method for producing paper
US20040188047A1 (en) * 2003-03-24 2004-09-30 Nof Corporation Paper additive composition and method for producing paper using the same
US20040198947A1 (en) * 2003-04-01 2004-10-07 Hercules Incorporated Synthesis of high solids resins from amine terminated polyamides
US6908983B2 (en) 2003-04-01 2005-06-21 Hercules Corporation Synthesis of high solids resins from amine terminated polyamides
US20040234804A1 (en) * 2003-05-19 2004-11-25 Kimberly-Clark Worldwide, Inc. Single ply tissue products surface treated with a softening agent
US7396593B2 (en) 2003-05-19 2008-07-08 Kimberly-Clark Worldwide, Inc. Single ply tissue products surface treated with a softening agent
US20050148261A1 (en) * 2003-12-30 2005-07-07 Kimberly-Clark Worldwide, Inc. Nonwoven webs having reduced lint and slough
US20080213597A1 (en) * 2004-01-22 2008-09-04 Kaichang Li Formaldehyde-Free Adhesives and Lignocellulosic Composites Made from the Adhesives
US7722712B2 (en) 2004-01-22 2010-05-25 State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University Formaldehyde-free adhesives and lignocellulosic composites made from the adhesives
US7431799B2 (en) 2004-02-26 2008-10-07 Fpinnovations Epichlorohydrin-based polymers containing primary amino groups used as additives in papermaking
US20050192402A1 (en) * 2004-02-26 2005-09-01 Miroslav Antal Epichlorohydrin-based polymers containing primary amino groups used as additives in papermaking
US8968516B2 (en) 2004-04-14 2015-03-03 Georgia-Pacific Consumer Products Lp Methods of making a belt-creped absorbent cellulosic sheet prepared with a perforated polymeric belt
US9017517B2 (en) 2004-04-14 2015-04-28 Georgia-Pacific Consumer Products Lp Method of making a belt-creped, absorbent cellulosic sheet with a perforated belt
US9388534B2 (en) 2004-04-14 2016-07-12 Georgia-Pacific Consumer Products Lp Method of making a belt-creped, absorbent cellulosic sheet with a perforated belt
WO2005113700A1 (en) 2004-04-20 2005-12-01 State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University Formaldehyde-free lignocellulosic adhesives and composites made from the adhesives
US20050279471A1 (en) * 2004-06-18 2005-12-22 Murray Frank C High solids fabric crepe process for producing absorbent sheet with in-fabric drying
US7503998B2 (en) 2004-06-18 2009-03-17 Georgia-Pacific Consumer Products Lp High solids fabric crepe process for producing absorbent sheet with in-fabric drying
US8142612B2 (en) 2004-06-18 2012-03-27 Georgia-Pacific Consumer Products Lp High solids fabric crepe process for producing absorbent sheet with in-fabric drying
EP2390410A1 (en) 2004-06-18 2011-11-30 Georgia-Pacific Consumer Products LP Fabric-creped absorbent cellulosic sheet
WO2006009833A1 (en) 2004-06-18 2006-01-26 Fort James Corporation High solids fabric crepe process for producing absorbent sheet with in-fabric drying
US8512516B2 (en) 2004-06-18 2013-08-20 Georgia-Pacific Consumer Products Lp High solids fabric crepe process for producing absorbent sheet with in-fabric drying
US20080302497A1 (en) * 2004-08-05 2008-12-11 Joachim Storsberg Paper Product with Increased Relative Wet Tensile Strength and Softness, Method for Production and Use Thereof
US7491274B2 (en) 2004-10-29 2009-02-17 Chemetall Corp. Non-chrome metal treatment composition
US20060090818A1 (en) * 2004-10-29 2006-05-04 General Electric Company Novel non-chrome metal treatment composition
US20090032140A1 (en) * 2004-10-29 2009-02-05 Chemetall Corp. Novel non-chrome metal treatment composition
US20060144536A1 (en) * 2004-12-30 2006-07-06 Nickel Deborah J Soft and durable tissues made with thermoplastic polymer complexes
US20060144541A1 (en) * 2004-12-30 2006-07-06 Deborah Joy Nickel Softening agent pre-treated fibers
US20100184902A1 (en) * 2005-03-15 2010-07-22 Georgia-Pacific Consumer Products Lp Phosphoric Acid Quenched Creping Adhesive
EP1703019A1 (en) 2005-03-15 2006-09-20 Fort James Corporation Phosphoric acid stabilized creping adhesive
US20060237154A1 (en) * 2005-04-21 2006-10-26 Edwards Steven L Multi-ply paper towel with absorbent core
EP2581213A1 (en) 2005-04-21 2013-04-17 Georgia-Pacific Consumer Products LP Multi-ply paper towel with absorbent core
US7918964B2 (en) 2005-04-21 2011-04-05 Georgia-Pacific Consumer Products Lp Multi-ply paper towel with absorbent core
US7662257B2 (en) 2005-04-21 2010-02-16 Georgia-Pacific Consumer Products Llc Multi-ply paper towel with absorbent core
US20100170647A1 (en) * 2005-04-21 2010-07-08 Edwards Steven L Multi-ply paper towel with absorbent core
US20060270801A1 (en) * 2005-05-25 2006-11-30 Georgia-Pacific Resins, Inc. Glyoxalated inter-copolymers with high and adjustable charge density
US7589153B2 (en) 2005-05-25 2009-09-15 Georgia-Pacific Chemicals Llc Glyoxalated inter-copolymers with high and adjustable charge density
US20060289133A1 (en) * 2005-06-24 2006-12-28 Yeh Kang C Fabric-creped sheet for dispensers
US7585389B2 (en) 2005-06-24 2009-09-08 Georgia-Pacific Consumer Products Lp Method of making fabric-creped sheet for dispensers
US7585388B2 (en) 2005-06-24 2009-09-08 Georgia-Pacific Consumer Products Lp Fabric-creped sheet for dispensers
US20060289134A1 (en) * 2005-06-24 2006-12-28 Yeh Kang C Method of making fabric-creped sheet for dispensers
US20070106061A1 (en) * 2005-09-27 2007-05-10 Zollinger Mark L Methods to reduce organic impurity levels in polymers and products made therefrom
US7803899B2 (en) 2005-09-27 2010-09-28 Buckman Laboratories International, Inc. Methods to reduce organic impurity levels in polymers and products made therefrom
US20080241483A1 (en) * 2005-09-28 2008-10-02 Fujifilm Manufacturing Europe B.V. Recording support
US20080233369A1 (en) * 2005-09-28 2008-09-25 Fujifilm Manufacturing Europe B.V. Recording support
EP1770214A1 (en) 2005-09-28 2007-04-04 Fuji Photo Film B.V. Recording support
US20070204966A1 (en) * 2006-03-06 2007-09-06 Georgia-Pacific Consumer Products Lp Method Of Controlling Adhesive Build-Up On A Yankee Dryer
US7850823B2 (en) 2006-03-06 2010-12-14 Georgia-Pacific Consumer Products Lp Method of controlling adhesive build-up on a yankee dryer
US20080050602A1 (en) * 2006-08-24 2008-02-28 Spraul Bryan K Adhesive composition of low molecular weight polyaminopolyamide-epichlorohydrin (PAE) resin and protein
US20100000694A1 (en) * 2006-08-31 2010-01-07 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Paper product and method for production thereof and use thereof
US20080149287A1 (en) * 2006-12-20 2008-06-26 Georgia-Pacific Chemicals Llc Polyacrylamide-based strengthening agent
US7863395B2 (en) 2006-12-20 2011-01-04 Georgia-Pacific Chemicals Llc Polyacrylamide-based strengthening agent
CN101636431B (en) * 2007-01-19 2013-02-06 赫尔克里士公司 Creping adhesives made from amine-terminated polyamidoamines
AU2008206098B2 (en) * 2007-01-19 2013-01-17 Solenis Technologies Cayman, L.P. Creping adhesives made from amine-terminated polyamidoamines
US7943705B2 (en) 2007-01-19 2011-05-17 Hercules Incorporated Creping adhesives made from amine-terminated polyamidoamines
WO2008089419A1 (en) * 2007-01-19 2008-07-24 Hercules Incorporated Creping adhesives made from amine-terminated polyamidoamines
US20080292886A1 (en) * 2007-03-23 2008-11-27 Hercules Inc. Adhesive formulations containing urea additives, methods of forming plywood therewith, and plywood products made thereby
US8771578B2 (en) 2007-04-17 2014-07-08 Kemira Chemicals, Inc. Acidified polyamidoamine adhesives, method of manufacture, and use for creping and ply bond applications
US20110220308A1 (en) * 2007-04-17 2011-09-15 Kemira Chemicals, Inc. Acidified polyamidoamine adhesives, method of manufacture, and use for creping and play bond applications
US20080257507A1 (en) * 2007-04-17 2008-10-23 Campbell Clayton J Acidified polyamidoamine adhesives, method of manufacture, and use for creping and ply bond applications
US8252866B2 (en) 2007-10-19 2012-08-28 Georgia-Pacific Chemicals Llc Azetidinium-functional polysaccharides and uses thereof
US20100294725A1 (en) * 2007-10-19 2010-11-25 Georgia-Pacific Chemicals Llc Azetidinium-functional polysaccharides and uses thereof
US9725599B2 (en) 2007-12-12 2017-08-08 Omya International Ag Surface-mineralized organic fibers
US20100331457A1 (en) * 2007-12-12 2010-12-30 Matthias Buri Surface-mineralized organic fibers
US20090194244A1 (en) * 2008-02-01 2009-08-06 Georgia-Pacific Consumer Products Lp High Basis Weight TAD Towel Prepared From Coarse Furnish
US8080130B2 (en) 2008-02-01 2011-12-20 Georgia-Pacific Consumer Products Lp High basis weight TAD towel prepared from coarse furnish
EP2088237A1 (en) 2008-02-01 2009-08-12 Georgia-Pacific Consumer Products LP High basis weight TAD towel prepared from coarse furnish
WO2009151612A2 (en) 2008-06-11 2009-12-17 Georgia-Pacific Consumer Products Lp Absorbent sheet prepared with papermaking fiber and synthetic fiber exhibiting improved wet strength
US20090308551A1 (en) * 2008-06-11 2009-12-17 Kokko Bruce J Absorbent sheet prepared with papermaking fiber and synthetic fiber exhibiting improved wet strength
US8066849B2 (en) 2008-06-11 2011-11-29 Georgia-Pacific Consumer Products Lp Absorbent sheet prepared with papermaking fiber and synthetic fiber exhibiting improved wet strength
US8361278B2 (en) 2008-09-16 2013-01-29 Dixie Consumer Products Llc Food wrap base sheet with regenerated cellulose microfiber
US20100065235A1 (en) * 2008-09-16 2010-03-18 Dixie Consumer Products Llc Food wrap base sheet with regenerated cellulose microfiber
US8852397B2 (en) 2009-01-28 2014-10-07 Georgia-Pacific Consumer Products Lp Methods of making a belt-creped absorbent cellulosic sheet prepared with a perforated polymeric belt
US8652300B2 (en) 2009-01-28 2014-02-18 Georgia-Pacific Consumer Products Lp Methods of making a belt-creped absorbent cellulosic sheet prepared with a perforated polymeric belt
US8293072B2 (en) 2009-01-28 2012-10-23 Georgia-Pacific Consumer Products Lp Belt-creped, variable local basis weight absorbent sheet prepared with perforated polymeric belt
WO2011042227A1 (en) 2009-10-09 2011-04-14 Weiser Chemie + Technik Ug Method for producing wet-strengthened papers
DE102009044228A1 (en) 2009-10-09 2011-05-05 Weiser Chemie + Technik UG (haftungsbeschränkt) Process for the production of wet-strength papers
US8398819B2 (en) 2009-12-07 2013-03-19 Georgia-Pacific Consumer Products Lp Method of moist creping absorbent paper base sheet
EP2330250A2 (en) 2009-12-07 2011-06-08 Georgia-Pacific Consumer Products LP Moist crepe process
EP2896744A2 (en) 2009-12-07 2015-07-22 Georgia-Pacific Consumer Products LP Moist crepe process
US20110146924A1 (en) * 2009-12-07 2011-06-23 Georgia-Pacific Consumer Products Lp Moist Crepe Process
US8246781B2 (en) 2010-05-20 2012-08-21 Georgia-Pacific Chemicals Llc Thermosetting creping adhesive with reactive modifiers
US9382664B2 (en) * 2011-01-05 2016-07-05 Georgia-Pacific Consumer Products Lp Creping adhesive compositions and methods of using those compositions
US9702088B2 (en) 2011-01-05 2017-07-11 Georgia-Pacific Consumer Products Lp Creping adhesive compositions and methods of using those compositions
US20120168103A1 (en) * 2011-01-05 2012-07-05 Georgia-Pacific Consumer Products Lp Creping Adhesive Compositions And Methods Of Using Those Compositions
WO2012135455A1 (en) 2011-03-29 2012-10-04 Kemira Oyj Polyamine polyamidoamine epihalohydrin compositions and processes for preparing and using the same
US8742030B2 (en) * 2011-03-29 2014-06-03 Kemira Oyj Polyamine polyamidoamine epihaloohydrin compositions and processes for preparing and using the same
WO2013019526A1 (en) 2011-08-01 2013-02-07 Buckman Laboratories International, Inc. Creping methods using ph-modified creping adhesive compositions
US8568562B2 (en) 2011-08-01 2013-10-29 Buckman Laboratories International, Inc. Creping methods using pH-modified creping adhesive compositions
US20150322339A1 (en) * 2011-08-22 2015-11-12 Construction Research & Technology Gmbh Use of polyamine as anti-sticking additive
WO2013046060A1 (en) 2011-09-30 2013-04-04 Kemira Oyj Paper and methods of making paper
US9212453B2 (en) 2011-09-30 2015-12-15 Kemira Oyj Paper and methods of making paper
EP3246464A1 (en) 2011-09-30 2017-11-22 Kemira Oyj Paper and methods of making paper
US10196779B2 (en) 2011-12-22 2019-02-05 Kemira Oyj Compositions and methods of making paper products
WO2013095952A1 (en) 2011-12-22 2013-06-27 Kemira Oyj Compositions and methods of making paper products
US9777434B2 (en) 2011-12-22 2017-10-03 Kemira Dyj Compositions and methods of making paper products
US8747616B2 (en) 2012-09-12 2014-06-10 Ecolab Usa Inc Method for the emulsification of ASA with polyamidoamine epihalohydrin (PAE)
WO2014049437A1 (en) 2012-09-26 2014-04-03 Kemira Oyj Absorbent materials, products including absorbent materials, compositions, and methods of making absorbent materials
US20150238650A1 (en) * 2012-09-26 2015-08-27 Kemira Oyj Absorbent materials, products including absorbent materials, compositions, and methods of making absorbent materials
US10624986B2 (en) * 2012-09-26 2020-04-21 Kemira Oyj Absorbent materials, products including absorbent materials, compositions, and methods of making absorbent materials
WO2014087232A1 (en) 2012-12-06 2014-06-12 Kemira Oyj Compositions used in paper and methods of making paper
US9562326B2 (en) 2013-03-14 2017-02-07 Kemira Oyj Compositions and methods of making paper products
WO2014140799A1 (en) 2013-03-14 2014-09-18 Kemira Oyj Compositions and methods of making paper products
WO2015069966A1 (en) 2013-11-07 2015-05-14 Georgia-Pacific Chemicals Llc Creping adhesives and methods for making and using same
US9815717B2 (en) 2013-11-08 2017-11-14 Georgia-Pacific Chemicals Llc Depressants for use in separation processes
WO2015073917A1 (en) 2013-11-15 2015-05-21 Buckeye Technologies Inc. Dispersible nonwoven wipe material
WO2015088881A1 (en) 2013-12-10 2015-06-18 Buckman Laboratories International, Inc. Adhesive formulation and creping methods using same
US9976259B2 (en) 2013-12-10 2018-05-22 Buckman Laboratories International, Inc. Adhesive formulation and creping methods using same
US9243365B2 (en) 2013-12-20 2016-01-26 Georgia-Pacific Chemicals Llc Release aids with adjustable cloud points for creping processes
US9689114B2 (en) 2014-08-07 2017-06-27 Georgia-Pacific Chemicals Llc Strengthening resins for paper products
WO2016205650A2 (en) 2015-06-19 2016-12-22 Koch Agronomic Services, Llc Strengthened composite products and methods for making and using same
WO2016210066A1 (en) 2015-06-25 2016-12-29 Georgia-Pacific Chemicals Llc Creping adhesives containing functionalized crosslinked resins
WO2017123734A1 (en) 2016-01-12 2017-07-20 Georgia-Pacific Consumer Products Lp Nonwoven cleaning substrate
US11267218B2 (en) 2016-01-12 2022-03-08 Glatfelter Corporation Nonwoven cleaning substrate
WO2018132692A1 (en) 2017-01-12 2018-07-19 Georgia-Pacific Nonwovens LLC Nonwoven material for cleaning and sanitizing surfaces
WO2018132688A1 (en) 2017-01-12 2018-07-19 Georgia-Pacific Nonwovens LLC Nonwoven material for cleaning and sanitizing surfaces
WO2018132684A1 (en) 2017-01-12 2018-07-19 Georgia-Pacific Nonwovens LLC Nonwoven material for cleaning and sanitizing surfaces
WO2018187192A1 (en) 2017-04-03 2018-10-11 Georgia-Pacific Nonwovens LLC Multi-layer unitary absorbent structures
WO2019067487A1 (en) 2017-09-27 2019-04-04 Georgia-Pacific Nonwovens LLC Nonwoven air filtration medium
WO2019067432A1 (en) 2017-09-27 2019-04-04 Georgia-Pacific Nonwovens LLC Nonwoven material with high core bicomponent fibers
WO2019178111A1 (en) 2018-03-12 2019-09-19 Georgia-Pacific Nonwovens LLC Nonwoven material with high core bicomponent fibers
US11692291B2 (en) 2018-03-12 2023-07-04 Glatfelter Corporation Nonwoven material with high core bicomponent fibers
WO2019183154A1 (en) 2018-03-22 2019-09-26 Buckman Laboratories International, Inc. Modified creping adhesive formulation and creping methods using same
US11053641B2 (en) 2018-03-22 2021-07-06 Buckman Laboratories International, Inc. Modified creping adhesive formulation and creping methods using same
WO2020061290A1 (en) 2018-09-19 2020-03-26 Georgia-Pacific Nonwovens LLC Unitary nonwoven material
WO2020240476A1 (en) 2019-05-30 2020-12-03 Georgia-Pacific Nonwovens LLC Low-runoff airlaid nonwoven materials
WO2021024200A1 (en) 2019-08-08 2021-02-11 Georgia-Pacific Nonwovens LLC Low-dust airlaid nonwoven materials
WO2021053588A1 (en) 2019-09-18 2021-03-25 Georgia-Pacific Mt. Holly Llc Absorbent nonwoven materials
CN113024806A (en) * 2021-03-10 2021-06-25 浙江理工大学 Low-chlorine environment-friendly PAE wet strength agent and synthesis method thereof
CN114456362A (en) * 2022-02-17 2022-05-10 九洲生物技术(苏州)有限公司 Modifier for preparing multi-branched polymer biological latex and preparation method thereof

Also Published As

Publication number Publication date
NL110447C (en)
FR1265829A (en) 1961-07-07
NL231136A (en)
DE1546369C3 (en) 1974-11-21
DE1546369B2 (en) 1974-04-04
DE1177824B (en) 1964-09-10
US3483077A (en) 1969-12-09
GB865727A (en) 1961-04-19
DE1546369A1 (en) 1970-05-21

Similar Documents

Publication Publication Date Title
US2926116A (en) Wet-strength paper and method of making same
US2926154A (en) Cationic thermosetting polyamide-epichlorohydrin resins and process of making same
US3066066A (en) Mineral fiber products and method of preparing same
US3197427A (en) Cationic thermosetting polyamide-epichlorohydrin resins of improved stability and process of making same
US2595935A (en) Wet strength paper and process for the production thereof
US3240664A (en) Polyaminoureylene- epichlorohydrin resins and use in forming wet strength paper
US3240761A (en) Cationic thermosetting quaternized polyamide-epichlorohydrin resins and method of preparing same
US3352833A (en) Acid stabilization and base reactivation of water-soluble wet-strength resins
US3058873A (en) Manufacture of paper having improved wet strength
US2721140A (en) Paper of high wet strength and process therefor
US3311594A (en) Method of making acid-stabilized, base reactivatable amino-type epichlorohydrin wet-strength resins
US3049469A (en) Application of coating or impregnating materials to fibrous material
US3186900A (en) Sizing paper under substantially neutral conditions with a preblend of rosin and cationic polyamide-epichlorohydrin resin
US3138473A (en) Compositions and process to increase the wet strength of paper
CA1250691A (en) Epoxidized polyalkyleneamine-amide wet strength resins
US3250664A (en) Process of preparing wet strength paper containing ph independent nylon-type resins
US3215654A (en) Process for preparing aqueous solutions of alkylated aminopolyamide-epichlorohydrin resins and use of same as retention aids
US3227671A (en) Aqueous solution of formaldehyde and cationic thermosetting polyamide-epichlorohydrin resin and process of making same
CA1144691A (en) Sizing accelerator
US4066494A (en) Nitrogenous condensation products used as retention aids in papermaking
US3887510A (en) Process for low temperature preparation of aqueous solution of polyalkylene amine-polyamide resins
US2657132A (en) Manufacturing wet strength paper containing cationic urea-formaldehyde resin
EP0493757A2 (en) Synthesis of high solids-content wet-strength resin
US2969302A (en) Method of making paper
US3372086A (en) Water-soluble polyalkylenepolyamine/dialdehyde resins and application thereof in production of wet strength paper