US3755206A - Detergent compositions - Google Patents
Detergent compositions Download PDFInfo
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- US3755206A US3755206A US00118939A US3755206DA US3755206A US 3755206 A US3755206 A US 3755206A US 00118939 A US00118939 A US 00118939A US 3755206D A US3755206D A US 3755206DA US 3755206 A US3755206 A US 3755206A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/32—Amides; Substituted amides
- C11D3/323—Amides; Substituted amides urea or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/29—Sulfates of polyoxyalkylene ethers
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/37—Mixtures of compounds all of which are anionic
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/38—Cationic compounds
- C11D1/65—Mixtures of anionic with cationic compounds
- C11D1/655—Mixtures of sulfonated products with alkylolamides of carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/86—Mixtures of anionic, cationic, and non-ionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/34—Organic compounds containing sulfur
- C11D3/3418—Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
- C11D1/143—Sulfonic acid esters
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/38—Cationic compounds
- C11D1/52—Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
- C11D1/523—Carboxylic alkylolamides, or dialkylolamides, or hydroxycarboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 contain one hydroxy group per alkyl group
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
Definitions
- ABSTRACT A liquid detergent system having a controllable viscosity and clarity, including a water-soluble paraffin sulfonate and a water-soluble, higher alkane, ether sulfate. Control of the viscosity and clarity is accomplished by using a control system comprising a lower aliphatic a1- cohol and urea.
- the present invention relates to clear, stable, liquid detergent compositions containing:
- compositions are prepared in the form of a clear, stable liquid detergent composition contain ing A and B in a total content of about 10 to about 60 percent by weight in an aqueous medium.
- Liquid detergent compositions which comprise sodium dodecyl benzene sulfonate and ammonium alkyl ether sulfate.
- solubilizing agents or hydrotropes such as the lower aliphatic alcohols (e.g., ethyl alcohol), urea,
- low molecular weight alkylbenzene sulfonates e.g., sodium xylene sulfonate
- alkylbenzene sulfonates e.g., sodium xylene sulfonate
- B compatible water soluble salts of alkyl ether sulfates, as hereinafter defined, with as high as 60 percent active ingredients in an aqueous liquid provided the ratio of A:B is from 10:1 to 1:1, and
- liquid detergent compositions of the present invention have significant advantages over the previously known liquid detergents based on alkyl aryl sulfonates and alkyl ether sulfates.
- Liquid detergent compositions of substantially equal percentage of active ingredients and comparable clarity can be produced in accordance with the present invention with significantly lower percentages of hydrotropes than were necessarily used in-the previously known compositions.
- compositions of the present invention produce better foam than the prior art compositions both in quantity and durability.
- compositions of the present invention when diluted to the same concentration for use as the prior art compositions give substantially higher performance, particularly in dish washing.
- Washing compositions made with the product of the present invention also have significantly lower surface tension than compositions of the same concentration using prior art compositions.
- paraffin sulfonates used in the present invention are usually mixed secondary alkyl sulfonates having from ten to twenty carbon atoms per molecule, preferably they will have at least 80 percent, usually at least 90 percent, of from 10-17 carbon atoms per molecule. Where the major proportion has 14-15 carbon atoms per molecule, optimum foaming performance appears to be obtained at varying concentrations and water hardnesses.
- These sulfonates are preferably prepared by subjecting a cut of paraffin, corresponding to the chain lengths specified above, to the action of sulfur dioxide and oxygen in accordance with the well known sulfoxidation process.
- the product of this reaction is a secondary sulfonic acid which is then neutralized with a suitable base to provide the water soluble secondary alkyl sulfonate for use in the present invention.
- Similar useful secondary alkyl sulfonates may be obtained by other methods, e.g., by the sulfochlorination method in which chlorine and sulfur dioxide are reacted with paraffins in the presence of actinic light, the resulting sulforyl chlorides being hydrolyzed and neutralized to form the secondary alkyl sulfonates.
- R is a primary or secondary alkyl group that may be straight or branched having from 10 to 18 carbon atoms, preferably 12 to 14
- X is a suitable cation, as hereinafter defined
- n is a number from 1 to 10, preferably 3' to 6.
- the cation of the paraffin sulfonate and alkyl ether sulfate may be an alkali metal, an alkaline earth metal (e.g., magnesium), ammonium or lower amine (including alkylolamines). It is preferred to use the sodium salt of the paraffin sulfonic acid and an ammonium salt of the alkyl ether sulfuric acid ester.
- non-ionic surface active agents in the composition to improve the quantity and the lasting quality of the foam.
- non-ionic surface active agents which 'may be used satisfactorily are higher alcohols, ether alcohols, ethoxylated phenols, and higher fatty acid amides.
- the liquid detergent composition contain a higher fatty acid alkylolamide material in sufficient amount to act as a suds builder. Its presence results in a product which exhibits high foaming power in use, particularly in the stability of the foam generated during dish washing or laundering operations. It should not be employed in an amount sufficient to destroy the desired physical properties.
- the acyl radical of the alkylolamide is selected from the class of fatty acids having 8 to 18 carbon atoms and each alkylol group usually has up to 3- carbon atoms.
- the monoethanolamides of lauric and myristic acids but diethanolamides and isopropanolamides as well as monoethanolamides of fatty acids having about 10 to 14 carbon atoms in the acyl radical are satisfactory.
- Examples are capric,lauric, myristic and coconut monoethanolamides, diethanolamides and isopropanolamides and mixtures thereof.
- alkylolamides which are substituted by additional alkylol groups, suitable examples may be the above amides condensed with 1 or 2 moles of ethylene oxide.
- any suitable ratio of parafiin sulfonates to alkyl ether sulfates may be used as described, it has been found that the ratio should be at least about 60 40 for an optimum combination of properties, particularly in the presence of amide or the like. Suitable ratios are 60:40, :30, :20 and :15 by weight with 0-8 percent alkylolamide, preferably 1-6 percent and usually 4-6 percent, such as coconut monoethanolamide, diethanolamide, or ethanolamide condensed with about 1-4 moles of ethylene oxide. It is understood that the sulfonate and sulfate salts may be in any suitable watersoluble salt form such as the sodium, potassium, ammonium, and mono-, diand tri-ethanolamine salts, or
- R represents an alkyl group that may be straight or branched having from 10 to 18 carbon atoms and n is a number from to 10, preferably 3 to 6. 1n the case of higher ether alcohols, the preferred chain length for the alkyl group is from C C when n has a value from 3-6 as preferred.
- the non-ionics may be present in the formula up to about percent by weight of the product, preferably up to about 4 percent of the alcohol ether and up to about 8 percent of the fatty acid alkylolamide.
- the viscosity and clarity control system used in the liquid detergent composition of the invention comprises urea, a lower aliphatic alcohol, and optionally a water-soluble hydrotropic substance which is effective in promoting the compatibility of the ingredients in the liquid product and can be substituted for part of the urea or alcohol.
- Suitable hydrotropic substances are the alkali metal organic sulfonated (including sulfated) salts having a lower alkyl group up to about 6 carbon atoms.
- the preferred sulfonated hydrotropes are alkyl aryl sulfonates having up to 3 carbon atoms in the lower alkyl group, e.g., the sodium and potassium xylene, toluene, ethylbenzene and isopropyl benzene (cu mene) sulfonates.
- Sulfonates made from xylene include orthoxylene sulfonate, metaxylene sulfonate, paraxylene sulfonate and ethylbenzene sulfonate.
- Commercial xylene sulfonates usually contain metaxylene sulfonate as the main ingredient. Analysis of typical commercial xylene sulfonate products shows about 40-50 percent metaxylene sulfonate, 10-35 percent orthoxylene sulfonate and -30 percent paraxylene sulfonate with 0-20 percent ethylbenzene sulfonate. Any suitable isomeric mixture, however, may be employed.
- Sodium cumene sulfonate and sodium xylene sulfonate are preferred lower alkyl aryl sulfonates to use in the compositions of the present invention. It is also permissible to use suitably lower alkyl sulfate salts having about 5 to 6 carbon atoms in the alkyl group such as alkali metal n-amyl and n-hexyl sulhol, isopropyl alcohol or propylene glycol can be used, preferably, ethyl alcohol will be used.
- urea, lower alcohol, and hydrotropic substance best suited for any particular composition may be determined by the formulator by conventional tests.
- the weight content of this viscosity and control system based upon the total composition will vary from 25-15 percent and preferably from 6 to 13 percent.
- the urea and the alcohol will vary within the ranges of 0.5 to 5.0 percent, preferably l to 4 percent and 2 to lOfpercent, preferably 5 to 8 percent, respectively. It is desirable to maintain the ratio of urea to alcohol within the range of 1:15 to 1:3 parts by weight, most preferably, at about 122.5 when using an active ingredient content above about 30 percent by weight, preferably 35-45 percent including alkylolamide or the like.
- Varying amounts of hydrotrope such as xylene sulfonate or the like may be added or substituted in part for the alcohol or urea so as to form a ternary system with special properties such as to markedly increase the viscosity to greater levels.
- the amount should be selected by formulation so as to maintain a satisfactory viscosity and cloud point and maintain other desirable properties.
- the hydrotrope may constitute up to about 50 percent by weight of the total viscosity and control system.
- the liquid detergents of the present invention may also contain any of the additives heretofore used in other liquid detergent compositions such as sequestrants, e.g., salts of ethylenediamine tetraacetic acid, such as the sodium and potassium salts, and salts of hydroxy ethyl ethylene diamine triacetate. It is desirable in some cases to tint or color the liquid detergent composition and any suitable dyes may be used for this purpose. Perfume may also be added to these compositions to give them a pleasant odor.
- sequestrants e.g., salts of ethylenediamine tetraacetic acid, such as the sodium and potassium salts, and salts of hydroxy ethyl ethylene diamine triacetate. It is desirable in some cases to tint or color the liquid detergent composition and any suitable dyes may be used for this purpose. Perfume may also be added to these compositions to give them a pleasant odor.
- Water is used as the liquid vehicle for the liquid detergent compositions of the present invention. It will vary in proportion from about 50 to percent, depending upon the content of the other ingredients of the composition.
- compositions containing sulfonated hydrotropes and alcohol are compared with two conventional type liquid detergent compositions based on sodium dodecyl benzene sulfonate.
- Table 1 sets forth the four compositions.
- Sodium paraffin sulfonate is used in Examples 1 and 2 at the same level of concentration as the sodium dodecyl benzene sulfonate is used in Examples 1A and 2A respectively.
- Ammonium alkyl ether sulfate is also present at the same levels in each Example of pair 1 and 1A and of pair 2 and 2A.
- the non-ionic detergent (alcohol ether in Examples 1 and 1A and lauric myristic monoethanol amide in Examples 2 and 2A) is also at the same level in the two Examples of each pair.
- the sodium xylene sulfonate and alcohol content is adjusted to give the same physical properties to each Example of pair 1 and 1A and of pair 2 and 2A, respectively.
- the import of Table l is that satisfactory formulas having properties quite comparable from the physical standpoint with prior art formulas are obtainable in accordance with the present invention with a significantly reduced percentage of alcohol and sodium xylene sulfonate.
- Example 1 it will be noted in Example 1 that the same physical properties were obtained with 6 percent ethyl alcohol that required 8.5 percent for Example lA.
- Example 2 had the same physical properties with 4 percent sodium xylene sulfonate and 5.5 percent alcohol that Example 2A possessed at 6 percent sodium xylene sulfon-ate and 7 percent alcohol.
- Table ll compares the results of two different performance tests on washing solutions made from Examples l and 2 and rom Examples 1A and 2A.
- One of the performance tests is a dishwashing test which was carried out at two different levels of water hardness, viz., at 50 and 300 parts per million (PPM) of hardness, and at two concentrations of detergent, viz., 0.075 percent and 0.15 percent for each level of water hardness.
- the other test is a test of foam height at 300 parts per million water hardness at 0.05 percent level of concentration of detergent.
- the dishwashing tests mentioned above and hereinafter were carried out by uniformly soiling standard plates with a soil which consists of a commercial hydrogenated fatty (cottonseed) oil by spreading a small amount, equally, on each plate.
- the plates are washed in di'shpans which contain 6 liters of wash water at 43C.
- Each of the compositions to be tested (at the two different concentrations of the liquid detergent, and at the two different water hardnesses) is prepared and placed, separately, in different dishpans.
- the plates are then washed in the dishpans to an endpoint of a permanent break in the foam covering the dishpan; the number of plates which can be washed to that end point is noted and recorded. A difference of 2 plates in the results obtained is generally considered necessary in order to be significant at a 95 percent confidence level.
- the second test also mentioned above and which is employed to ascertain the foam characteristics of the compositions is the foam height test, and specifically, the well known Ross & Miles Test (Pour Foam Test).
- This test consists essentially of measuring foam in a measuring cylinder. A jacketed measuring cylinder is employed into which a portion of the solution (at 0.05 percent in 300 ppm water) to be tested is placed. The foam is formed by allowing a second portion of the solution to stream in from a fixed height through a stan- Elfin Foam Number of dishes height Water hardness-ppm.
- the foam is recorded as the maximum reached in the measuring cylinder.
- Table III shows the improvement in surface tension of compositions of the present invention compared with the prior art.
- EXAMPLE 3 1 Sodium paraffin sulfonate 30 C C Fatty alcohol E0 l NH sulfate 8 Coconut fatty acid monoethanolamide 2 Urea 2 Ethyl alcohol 5.4 Sodium ethylene diamine tetraacetate 0.075 Water (with small amounts of color,
- EXAMPLE 5 A satisfactory liquid detergent is prepared using the same materials as Example 3 in the following prportions 22 percent paraffin sulfonate, 13 percent alkyl I ether sulfate, 5 percent lauric myristic monoethanolamide, 5 percent urea and 6 percent ethanol with the balance being essentially water.
- EXAMPLE 6 A satisfactory liquid detergent is prepared with the same formula as Example 3 except that it contains 5.6 percent ethanol, 0.6 percent sodium xylene sulfonate and 1.8 percent urea.
- urea-lower alcohol control system a change in the physical characteristics of the composition is possible by varying the ratio of alcohol to urea.
- the ratio of alcohol to urea is 5.4 to 2 (2.711) which resulted in the clear point below 7C. and the viscosity of 170.
- l-lydrotropes such as sodium xylene sulfonate tend to have an effect similar to that of the alcohol, ie., increases thereof will raise the clear point but lower the viscosity. It is important to balance these constituents of the control system within the cited ranges to obtain the desired results. For optimum balance of clear point and viscosity, the total content of the control system will vary with the content of the active ingredients (paraffin sulfonate, alcohol ether sulfate and non-ionic detergents).
- the clear point is also influenced by the amount of esters in the amide and sodium sulfate in the paraffin sulfonate and alkyl ether sulfate used as raw materials in preparing the compositions and, for compositions having a low clear point, raw materials with low content of these impurities should be used.
- the characteristics given above for the specific composition of Example 3 can best be obtained if the amide does not contain over 2 percent esters and the paraffin sulfonate does not contain over 4 percent sodium sulfate.
- a clear, stable liquid detergent consisting essentially of a water-soluble paraffin sulfonate salt having from 10 to 20 carbon atoms in the molecule, a compatible water-soluble higher alkyl ether sulfate salt in a ratio of paraffin sulfonate to ether sulfate of about 10:1 to 1:1; and means for controlling the viscosity and clarity of said liquid detergent; wherein the total content of said paraffin sulfonate and alkyl ether sulfate salts is about 10 percent to about 60 percent by weight in an aqueous medium, the means for controlling the viscosity and clarity constitutes from about 6 to 13 percent by weight of the liquid detergent composition and comprises a mixture of urea and a lower alkanol in a ratio of 1:1.5 to 1:3; said alkyl ether sulfate being represented by the formula:
- R is an alkyl group having 10 to 18 carbon atoms per molecule, n is a number from 1 to 10, and X is a cation; and the cation of the sulfonate and, said sulfate being selected from the group consisting of alkali metals, alkaline earth metals, ammonium, and lower amines.
- a detergent as set forth in claim 1 which also contains a nonionic foam builder selected from the group consisting of compounds represented by the formula:
- R is an alkyl group having 10 to 18 carbon atoms and n is a number from O to 10, and monoand diethanolamides and isopropanolamides of a C,,,-C fatty acid, said foam builder being present in amounts up to about 10 percent by weight of the liquid detergent.
- a detergent as set forth in claim 1 which contains 20 to 35 percent by weight of sodium C -C paraffin sulfonate; 6 to 15 percent by weight of ammonium C,,-C alkyl triethenoxy ether sulfate; 0 to 6 percent by weight of lauric myristic monoethanolamide; a viscosity and clarity control agent comprising 0.5 to 5 percent by weight of urea and ,2 to 10 percent by weight of lower alkanol; and water.
Abstract
A liquid detergent system having a controllable viscosity and clarity, including a water-soluble paraffin sulfonate and a water-soluble, higher alkane, ether sulfate. Control of the viscosity and clarity is accomplished by using a control system comprising a lower aliphatic alcohol and urea.
Description
United States Patent [191 Verdier DETERGENT COMPOSITIONS [75] Inventor: Denise Verdler, Le Bourget, France v [73] Assignee: Colgate-Palmolive Company, New
York, NY.
[22] Filed: Feb. 25, 1971 [21] Appl. No.: 118,939
[30] Foreign Application Priority Data Mar. 9, 1970 France 7008310 Nov. 9, 1970 France 7040196 [52] US. Cl 252/545, 252/548, 252/551,
252/552, 252/153 [51] Int. Cl.....C1ld 1/14, Cl1d1/37, C1ld1/655,
1 1 Aug. 28, 1973 3,231,504 1/1966 Marion et a1, 252/551 X 2,941,950 6/1960 Korpi et a1 252/551 X 3,308,068 3/1967 Jones 252/554 FOREIGN PATENTS OR APPLICATIONS 1,104,692 2/1968 Great Britain 279,352 1/ 1965 Australia 513,726 9/1952 Belgium 214,861 5/1958 Australia 808,805 2/1959 Great Britain Primary Examiner-Leon D. Rosdol Assistant ExaminerP. E. Willis Attorney-I-Ierbert S. Sylvester, Murray M. Grill, Norman Blumenkopf, Ronald S. Cornell, Thomas J. Corum, Richard N. Miller and Robert L. Stone [57] ABSTRACT A liquid detergent system having a controllable viscosity and clarity, including a water-soluble paraffin sulfonate and a water-soluble, higher alkane, ether sulfate. Control of the viscosity and clarity is accomplished by using a control system comprising a lower aliphatic a1- cohol and urea.
9 Claims, No Drawings DETERGENT COMPOSITIONS The present invention relates to clear, stable, liquid detergent compositions containing:
A. Water soluble salts of paraffin sulfonates,
B. Compatible water soluble salts of higher alkyl ether sulfates in a ratio of A:B of about :1 to 1:1, and
C. a viscosity and clarity control system. Preferably, the compositions are prepared in the form of a clear, stable liquid detergent composition contain ing A and B in a total content of about 10 to about 60 percent by weight in an aqueous medium.
Liquid detergent compositions are known which comprise sodium dodecyl benzene sulfonate and ammonium alkyl ether sulfate. In order to formulate liquid detergents comprising these two ingredients in sufficient concentration to be practical, it has been necessary to include in the composition relatively high proportions of solubilizing agents or hydrotropes such as the lower aliphatic alcohols (e.g., ethyl alcohol), urea,
low molecular weight alkylbenzene sulfonates (e.g., sodium xylene sulfonate), and the like.
It has now been discovered that commercially acceptable liquid detergent compositions can be formulated based on:
A. water soluble salts of paraffin sulfonates,
B. compatible water soluble salts of alkyl ether sulfates, as hereinafter defined, with as high as 60 percent active ingredients in an aqueous liquid provided the ratio of A:B is from 10:1 to 1:1, and
C. a viscosity and clarity control system, as hereafter defined. The liquid detergent compositions of the present invention have significant advantages over the previously known liquid detergents based on alkyl aryl sulfonates and alkyl ether sulfates.
Among the advantages of the present invention over the previously known liquid detergents are the following:
1. Liquid detergent compositions of substantially equal percentage of active ingredients and comparable clarity can be produced in accordance with the present invention with significantly lower percentages of hydrotropes than were necessarily used in-the previously known compositions.
2. The compositions of the present invention produce better foam than the prior art compositions both in quantity and durability.
3. Compositions of the present invention,when diluted to the same concentration for use as the prior art compositions give substantially higher performance, particularly in dish washing.
4. Washing compositions made with the product of the present invention also have significantly lower surface tension than compositions of the same concentration using prior art compositions.
Among the advantages of the present invention are improved and controlled performance such as foaming and dish washing ability, viscosity and clarity which are important features in consumer acceptability.
The paraffin sulfonates used in the present invention are usually mixed secondary alkyl sulfonates having from ten to twenty carbon atoms per molecule, preferably they will have at least 80 percent, usually at least 90 percent, of from 10-17 carbon atoms per molecule. Where the major proportion has 14-15 carbon atoms per molecule, optimum foaming performance appears to be obtained at varying concentrations and water hardnesses. These sulfonates are preferably prepared by subjecting a cut of paraffin, corresponding to the chain lengths specified above, to the action of sulfur dioxide and oxygen in accordance with the well known sulfoxidation process. The product of this reaction is a secondary sulfonic acid which is then neutralized with a suitable base to provide the water soluble secondary alkyl sulfonate for use in the present invention. Similar useful secondary alkyl sulfonates may be obtained by other methods, e.g., by the sulfochlorination method in which chlorine and sulfur dioxide are reacted with paraffins in the presence of actinic light, the resulting sulforyl chlorides being hydrolyzed and neutralized to form the secondary alkyl sulfonates.
The higher alkyl ether sulfates used in the present invention are represented by the formula:
in which R is a primary or secondary alkyl group that may be straight or branched having from 10 to 18 carbon atoms, preferably 12 to 14, X is a suitable cation, as hereinafter defined, and n is a number from 1 to 10, preferably 3' to 6. These detergents are produced by sulfating the corresponding ether alcohol and then neutralizing the resulting sulfuric acid ester thereof.
The cation of the paraffin sulfonate and alkyl ether sulfate may be an alkali metal, an alkaline earth metal (e.g., magnesium), ammonium or lower amine (including alkylolamines). It is preferred to use the sodium salt of the paraffin sulfonic acid and an ammonium salt of the alkyl ether sulfuric acid ester.
It is advantageous to include non-ionic surface active agents in the composition to improve the quantity and the lasting quality of the foam. Among the non-ionic surface active agents which 'may be used satisfactorily are higher alcohols, ether alcohols, ethoxylated phenols, and higher fatty acid amides.
It is preferred that the liquid detergent composition contain a higher fatty acid alkylolamide material in sufficient amount to act as a suds builder. Its presence results in a product which exhibits high foaming power in use, particularly in the stability of the foam generated during dish washing or laundering operations. It should not be employed in an amount sufficient to destroy the desired physical properties. The acyl radical of the alkylolamide is selected from the class of fatty acids having 8 to 18 carbon atoms and each alkylol group usually has up to 3- carbon atoms. It is preferred to use the monoethanolamides of lauric and myristic acids but diethanolamides and isopropanolamides as well as monoethanolamides of fatty acids having about 10 to 14 carbon atoms in the acyl radical are satisfactory. Examples are capric,lauric, myristic and coconut monoethanolamides, diethanolamides and isopropanolamides and mixtures thereof. There may be employed also the alkylolamides which are substituted by additional alkylol groups, suitable examples may be the above amides condensed with 1 or 2 moles of ethylene oxide.
While any suitable ratio of parafiin sulfonates to alkyl ether sulfates may be used as described, it has been found that the ratio should be at least about 60 40 for an optimum combination of properties, particularly in the presence of amide or the like. Suitable ratios are 60:40, :30, :20 and :15 by weight with 0-8 percent alkylolamide, preferably 1-6 percent and usually 4-6 percent, such as coconut monoethanolamide, diethanolamide, or ethanolamide condensed with about 1-4 moles of ethylene oxide. It is understood that the sulfonate and sulfate salts may be in any suitable watersoluble salt form such as the sodium, potassium, ammonium, and mono-, diand tri-ethanolamine salts, or
mixtures thereof.
The higher alcohols and ether alcohols which may be used as foam builders in the present invention are represented by the formula:
R represents an alkyl group that may be straight or branched having from 10 to 18 carbon atoms and n is a number from to 10, preferably 3 to 6. 1n the case of higher ether alcohols, the preferred chain length for the alkyl group is from C C when n has a value from 3-6 as preferred.
When used, the non-ionics may be present in the formula up to about percent by weight of the product, preferably up to about 4 percent of the alcohol ether and up to about 8 percent of the fatty acid alkylolamide.
The viscosity and clarity control system used in the liquid detergent composition of the invention comprises urea, a lower aliphatic alcohol, and optionally a water-soluble hydrotropic substance which is effective in promoting the compatibility of the ingredients in the liquid product and can be substituted for part of the urea or alcohol.
Suitable hydrotropic substances are the alkali metal organic sulfonated (including sulfated) salts having a lower alkyl group up to about 6 carbon atoms. The preferred sulfonated hydrotropes are alkyl aryl sulfonates having up to 3 carbon atoms in the lower alkyl group, e.g., the sodium and potassium xylene, toluene, ethylbenzene and isopropyl benzene (cu mene) sulfonates. Sulfonates made from xylene include orthoxylene sulfonate, metaxylene sulfonate, paraxylene sulfonate and ethylbenzene sulfonate. Commercial xylene sulfonates usually contain metaxylene sulfonate as the main ingredient. Analysis of typical commercial xylene sulfonate products shows about 40-50 percent metaxylene sulfonate, 10-35 percent orthoxylene sulfonate and -30 percent paraxylene sulfonate with 0-20 percent ethylbenzene sulfonate. Any suitable isomeric mixture, however, may be employed. Sodium cumene sulfonate and sodium xylene sulfonate are preferred lower alkyl aryl sulfonates to use in the compositions of the present invention. it is also permissible to use suitably lower alkyl sulfate salts having about 5 to 6 carbon atoms in the alkyl group such as alkali metal n-amyl and n-hexyl sulhol, isopropyl alcohol or propylene glycol can be used, preferably, ethyl alcohol will be used.
The exact proportions of urea, lower alcohol, and hydrotropic substance best suited for any particular composition may be determined by the formulator by conventional tests. The weight content of this viscosity and control system based upon the total composition will vary from 25-15 percent and preferably from 6 to 13 percent. Within that range, the urea and the alcohol will vary within the ranges of 0.5 to 5.0 percent, preferably l to 4 percent and 2 to lOfpercent, preferably 5 to 8 percent, respectively. It is desirable to maintain the ratio of urea to alcohol within the range of 1:15 to 1:3 parts by weight, most preferably, at about 122.5 when using an active ingredient content above about 30 percent by weight, preferably 35-45 percent including alkylolamide or the like. Varying amounts of hydrotrope such as xylene sulfonate or the like may be added or substituted in part for the alcohol or urea so as to form a ternary system with special properties such as to markedly increase the viscosity to greater levels. The amount should be selected by formulation so as to maintain a satisfactory viscosity and cloud point and maintain other desirable properties. Generally, the hydrotrope may constitute up to about 50 percent by weight of the total viscosity and control system.
The liquid detergents of the present invention may also contain any of the additives heretofore used in other liquid detergent compositions such as sequestrants, e.g., salts of ethylenediamine tetraacetic acid, such as the sodium and potassium salts, and salts of hydroxy ethyl ethylene diamine triacetate. It is desirable in some cases to tint or color the liquid detergent composition and any suitable dyes may be used for this purpose. Perfume may also be added to these compositions to give them a pleasant odor.
Water is used as the liquid vehicle for the liquid detergent compositions of the present invention. It will vary in proportion from about 50 to percent, depending upon the content of the other ingredients of the composition.
In order to illustrate some of the benefits of the present invention, two compositions containing sulfonated hydrotropes and alcohol are compared with two conventional type liquid detergent compositions based on sodium dodecyl benzene sulfonate. Table 1 sets forth the four compositions. Sodium paraffin sulfonate is used in Examples 1 and 2 at the same level of concentration as the sodium dodecyl benzene sulfonate is used in Examples 1A and 2A respectively. Ammonium alkyl ether sulfate is also present at the same levels in each Example of pair 1 and 1A and of pair 2 and 2A. The non-ionic detergent (alcohol ether in Examples 1 and 1A and lauric myristic monoethanol amide in Examples 2 and 2A) is also at the same level in the two Examples of each pair. The sodium xylene sulfonate and alcohol content is adjusted to give the same physical properties to each Example of pair 1 and 1A and of pair 2 and 2A, respectively. The import of Table l is that satisfactory formulas having properties quite comparable from the physical standpoint with prior art formulas are obtainable in accordance with the present invention with a significantly reduced percentage of alcohol and sodium xylene sulfonate.
TABLE I Example SPS SDBS AMAES AE LMMEA SXS l ETHOH 1 11 Sodium paraffin sulfonate O a-C1 Sodium dodecylbenzene sulfonate.
alcohol.
* Alcohol ether, C12'C15, with 3 moles of ethylene oxide per mole of alcohol.
Laurie myrlstic monoethanolamide. Commercial sodium xylene sulfonate. a Ethyl alcohol.
Referring to Table I, it will be noted in Example 1 that the same physical properties were obtained with 6 percent ethyl alcohol that required 8.5 percent for Example lA. Example 2 had the same physical properties with 4 percent sodium xylene sulfonate and 5.5 percent alcohol that Example 2A possessed at 6 percent sodium xylene sulfon-ate and 7 percent alcohol.
Table ll compares the results of two different performance tests on washing solutions made from Examples l and 2 and rom Examples 1A and 2A. One of the performance tests is a dishwashing test which was carried out at two different levels of water hardness, viz., at 50 and 300 parts per million (PPM) of hardness, and at two concentrations of detergent, viz., 0.075 percent and 0.15 percent for each level of water hardness. The other test is a test of foam height at 300 parts per million water hardness at 0.05 percent level of concentration of detergent.
The dishwashing tests mentioned above and hereinafter were carried out by uniformly soiling standard plates with a soil which consists of a commercial hydrogenated fatty (cottonseed) oil by spreading a small amount, equally, on each plate.
The plates are washed in di'shpans which contain 6 liters of wash water at 43C. Each of the compositions to be tested (at the two different concentrations of the liquid detergent, and at the two different water hardnesses) is prepared and placed, separately, in different dishpans. The plates are then washed in the dishpans to an endpoint of a permanent break in the foam covering the dishpan; the number of plates which can be washed to that end point is noted and recorded. A difference of 2 plates in the results obtained is generally considered necessary in order to be significant at a 95 percent confidence level.
The second test also mentioned above and which is employed to ascertain the foam characteristics of the compositions is the foam height test, and specifically, the well known Ross & Miles Test (Pour Foam Test). This test consists essentially of measuring foam in a measuring cylinder. A jacketed measuring cylinder is employed into which a portion of the solution (at 0.05 percent in 300 ppm water) to be tested is placed. The foam is formed by allowing a second portion of the solution to stream in from a fixed height through a stan- Elfin Foam Number of dishes height Water hardness-ppm.
Concentration, percent-.. 0. 075 0.15 0. 07 5 0. 0.05
Example:
dard orifice. The foam is recorded as the maximum reached in the measuring cylinder.
It will be noted that Examples 1 and 2 are significantly better under all test conditions than Examples 1A and 2A.
The foregoing results are typical of the improved performance which can be obtained in accordance with the present invention as compared with compositions of the prior art.
Table III shows the improvement in surface tension of compositions of the present invention compared with the prior art.
TABLE III Water hardness-ppm.
Concentration, percent 0.05 0. 075 0.15 0.05 0.075 0.15
Example:
2Number of drops 151 161 137 152 I65 Zia-Number of drops 129 155 126 142 TABLE IV The preferred ranges are as follows:
Parafi'm sulfonates l5-40 Alcohol ether sulfates 4-15 Alkylolamide or alkylolamide Eto condensate 0- 8 Urea 1- 4 Ethanol 5- 8 Water 08 The following examples further describethe invention, with all amounts being by weight:
EXAMPLE 3 1: Sodium paraffin sulfonate 30 C C Fatty alcohol E0 l NH sulfate 8 Coconut fatty acid monoethanolamide 2 Urea 2 Ethyl alcohol 5.4 Sodium ethylene diamine tetraacetate 0.075 Water (with small amounts of color,
preservative and perfume) Total 100 The above product exhibits satisfactory foaming and dishwashing properties combined with preferred physi- EXAMPLE 4 A liquid detergent having similar properties as that of Example 3 is prepared by substituting an equivalent amount of coconut monoethanolamide condensed with about 2 moles of ethylene oxide for the monoethanolamide.
EXAMPLE 5 A satisfactory liquid detergent is prepared using the same materials as Example 3 in the following prportions 22 percent paraffin sulfonate, 13 percent alkyl I ether sulfate, 5 percent lauric myristic monoethanolamide, 5 percent urea and 6 percent ethanol with the balance being essentially water.
EXAMPLE 6 A satisfactory liquid detergent is prepared with the same formula as Example 3 except that it contains 5.6 percent ethanol, 0.6 percent sodium xylene sulfonate and 1.8 percent urea.
One of the advantages of the urea-lower alcohol control system is that a change in the physical characteristics of the composition is possible by varying the ratio of alcohol to urea. In the specific composition of Example 3, the ratio of alcohol to urea is 5.4 to 2 (2.711) which resulted in the clear point below 7C. and the viscosity of 170. By changing the alcohol: urea ratio by increasing the alcohol content, it is possible to decrease the viscosity and raise the clear point whereas by decreasing the alcohol content the clear point can be lowered and the viscosity increased. l-lydrotropes such as sodium xylene sulfonate tend to have an effect similar to that of the alcohol, ie., increases thereof will raise the clear point but lower the viscosity. It is important to balance these constituents of the control system within the cited ranges to obtain the desired results. For optimum balance of clear point and viscosity, the total content of the control system will vary with the content of the active ingredients (paraffin sulfonate, alcohol ether sulfate and non-ionic detergents).
The clear point is also influenced by the amount of esters in the amide and sodium sulfate in the paraffin sulfonate and alkyl ether sulfate used as raw materials in preparing the compositions and, for compositions having a low clear point, raw materials with low content of these impurities should be used. The characteristics given above for the specific composition of Example 3 can best be obtained if the amide does not contain over 2 percent esters and the paraffin sulfonate does not contain over 4 percent sodium sulfate.
Although the present invention has been described and illustrated with reference to certain specific compositions, these are to be considered as illustrative of and not as limitations on the present invention. All proportions are given hereinabove in percentages by weight of the entire composition unless otherwise indicated.
What is claimed is:
l. A clear, stable liquid detergent consisting essentially of a water-soluble paraffin sulfonate salt having from 10 to 20 carbon atoms in the molecule, a compatible water-soluble higher alkyl ether sulfate salt in a ratio of paraffin sulfonate to ether sulfate of about 10:1 to 1:1; and means for controlling the viscosity and clarity of said liquid detergent; wherein the total content of said paraffin sulfonate and alkyl ether sulfate salts is about 10 percent to about 60 percent by weight in an aqueous medium, the means for controlling the viscosity and clarity constitutes from about 6 to 13 percent by weight of the liquid detergent composition and comprises a mixture of urea and a lower alkanol in a ratio of 1:1.5 to 1:3; said alkyl ether sulfate being represented by the formula:
in which R is an alkyl group having 10 to 18 carbon atoms per molecule, n is a number from 1 to 10, and X is a cation; and the cation of the sulfonate and, said sulfate being selected from the group consisting of alkali metals, alkaline earth metals, ammonium, and lower amines.
2. A detergent as set forth in claim 1 in which said paraffin sulfonate is a mixture of compounds having about 13 to 18 carbon atoms per molecule.
3. A detergent as set forth in claim 1 in which R is an alkyl group having between 12 and 14 carbon atoms per molecule and n is a number from 3 to 6.
4. A detergent as set forth in claim 1 which also contains a nonionic foam builder selected from the group consisting of compounds represented by the formula:
in which R is an alkyl group having 10 to 18 carbon atoms and n is a number from O to 10, and monoand diethanolamides and isopropanolamides of a C,,,-C fatty acid, said foam builder being present in amounts up to about 10 percent by weight of the liquid detergent.
5. A detergent as set forth in claim 4 in which R is an alkyl group having 10 to 18 carbon atoms, n in the formula for said nonionic foam builder is a number from 6. A detergent as set forth in claim 4 in which said nonionic foam builder is lauric-myristic monoethanolamide.
7. A detergent as set forth in claim 1 which contains 20 to 35 percent by weight of sodium C -C paraffin sulfonate; 6 to 15 percent by weight of ammonium C,,-C alkyl triethenoxy ether sulfate; 0 to 6 percent by weight of lauric myristic monoethanolamide; a viscosity and clarity control agent comprising 0.5 to 5 percent by weight of urea and ,2 to 10 percent by weight of lower alkanol; and water.
8. A detergent as set forth in claim 7 in which said alkanol is ethyl alcohol.
9. A detergent as set forth in claim 7 in which said means for controlling the viscosity and clarity further includes a lower alkyl benzene sulfonate hydrotrope.
Claims (8)
- 2. A detergent as set forth in claim 1 in which said paraffin sulfonate is a mixture of compounds having about 13 to 18 carbon atoms per molecule.
- 3. A detergent as set forth in claim 1 in which R is an alkyl group having between 12 and 14 carbon atoms per molecule and n is a number from 3 to 6.
- 4. A detergent as set forth in claim 1 which also contains a nonionic foam builder selected from the group consisting of compounds represented by the formula: RO(C2H4O)nH in which R is an alkyl group having 10 to 18 carbon atoms and n is a number from 0 to 10, and mono- and diethanolamides and isopropanolamides of a C10-C14 fatty acid, said foam builder being present in amounts up to about 10 percent by weight of the liquid detergent.
- 5. A detergent as set forth in claim 4 in which R is an alkyl group having 10 to 18 carbon atoms, n in the formula for said nonionic foam builder is a number from 3 to 6.
- 6. A detergent as set forth in claim 4 in which said nonionic foam builder is lauric-myristic monoethanol-amide.
- 7. A detergent as set forth in claim 1 which contains 20 to 35 percent by weight of sodium C13-C18 paraffin sulfonate; 6 to 15 percent by weight of ammonium C12-C15 alkyl triethenoxy ether sulfate; 0 to 6 percent by weight of lauric myristic monoethanolamide; a viscosity and clarity control agent comprising 0.5 to 5 percent by weight of urea and 2 to 10 percent by weight of lower alkanol; and water.
- 8. A detergent as set forth in claim 7 in which said alkanol is ethyl alcohol.
- 9. A detergent as set forth in claim 7 in which said means for controlling the viscosity and clarity further includes a lower alkyl benzene sulfonate hydrotrope.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7008310A FR2082249A5 (en) | 1970-03-09 | 1970-03-09 | |
FR7040196A FR2112766A6 (en) | 1970-03-09 | 1970-11-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3755206A true US3755206A (en) | 1973-08-28 |
Family
ID=26215603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US00118939A Expired - Lifetime US3755206A (en) | 1970-03-09 | 1971-02-25 | Detergent compositions |
Country Status (15)
Country | Link |
---|---|
US (1) | US3755206A (en) |
JP (1) | JPS547804B1 (en) |
BE (1) | BE763311A (en) |
CA (1) | CA955143A (en) |
CH (1) | CH551485A (en) |
DE (1) | DE2110030C2 (en) |
DK (1) | DK140673B (en) |
FI (1) | FI53134C (en) |
FR (2) | FR2082249A5 (en) |
GB (1) | GB1339069A (en) |
IE (1) | IE35679B1 (en) |
NL (1) | NL171468B (en) |
NO (1) | NO137209C (en) |
PH (1) | PH10228A (en) |
SE (1) | SE399279B (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3899448A (en) * | 1972-02-07 | 1975-08-12 | Albright & Wilson | Detergent concentrate |
US3979340A (en) * | 1973-04-09 | 1976-09-07 | Colgate-Palmolive Company | Olefin sulfonate detergent compositions |
US3985687A (en) * | 1974-12-26 | 1976-10-12 | Colgate-Palmolive Company | Liquid detergent compositions of controlled viscosities |
FR2376896A1 (en) * | 1977-01-06 | 1978-08-04 | Colgate Palmolive Co | LIQUID DETERGENT COMPOSITION |
US4235898A (en) * | 1978-03-06 | 1980-11-25 | Kao Soap Co., Ltd. | Liquid shampoo composition |
US4260528A (en) * | 1979-06-18 | 1981-04-07 | Lever Brothers Company | Aqueous high viscosity liquid dishwasher compositions |
US4436653A (en) | 1981-04-06 | 1984-03-13 | The Procter & Gamble Company | Stable liquid detergent compositions |
US4554098A (en) * | 1982-02-19 | 1985-11-19 | Colgate-Palmolive Company | Mild liquid detergent compositions |
US5320783A (en) * | 1992-11-04 | 1994-06-14 | The Procter & Gamble Company | Detergent gels containing ethoxylated alkyl sulfate surfactants in hexagonal liquid crystal form |
US5607910A (en) * | 1993-06-30 | 1997-03-04 | Sherry; Alan E. | Detergent gels containing ethoxylated alkyl sulfates and secondary sulfonates |
US20040162230A1 (en) * | 2002-07-30 | 2004-08-19 | Earl Jenevein | Cleaning composition and a method of making thereof |
US20060189497A1 (en) * | 2002-07-30 | 2006-08-24 | Earl Jenevein | Wood preservative |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA722326B (en) * | 1971-05-04 | 1973-11-28 | Colgate Palmolive Co | Liquid detergent and laundering process |
JPS5116045B2 (en) * | 1972-08-08 | 1976-05-21 | ||
FR2208971B1 (en) * | 1972-12-06 | 1977-04-08 | Colgate Palmolive Co | |
CA1071055A (en) * | 1975-06-30 | 1980-02-05 | The Procter And Gamble Company | Liquid detergent compositions |
DE2853136C3 (en) * | 1977-12-09 | 1994-04-14 | Albright & Wilson | Aqueous, surface-active agent |
US4614612A (en) * | 1977-12-22 | 1986-09-30 | Lever Brothers Company | Liquid detergent composition |
DE2928141A1 (en) * | 1979-07-12 | 1981-02-05 | Hoechst Ag | SOFT SOFTENER |
GB8317883D0 (en) * | 1983-07-01 | 1983-08-03 | Unilever Plc | Handling of dialkyl sulphosuccinates |
US4671895A (en) * | 1985-11-15 | 1987-06-09 | Colgate-Palmolive Company | Liquid detergent compositions |
DE3711776A1 (en) * | 1987-04-08 | 1988-10-27 | Huels Chemische Werke Ag | USE OF N-POLYHYDROXYALKYL Fatty Acid Amides As Thickeners For Liquid Aqueous Surfactant Systems |
EP0703290A1 (en) * | 1994-09-20 | 1996-03-27 | The Procter & Gamble Company | Hard surface cleaners for improved shine |
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- 1971-02-22 CA CA105,954A patent/CA955143A/en not_active Expired
- 1971-02-23 BE BE763311A patent/BE763311A/en not_active IP Right Cessation
- 1971-02-25 US US00118939A patent/US3755206A/en not_active Expired - Lifetime
- 1971-03-03 DE DE2110030A patent/DE2110030C2/en not_active Expired
- 1971-03-03 PH PH12257A patent/PH10228A/en unknown
- 1971-03-04 FI FI641/71A patent/FI53134C/fi active
- 1971-03-08 CH CH333171A patent/CH551485A/en not_active IP Right Cessation
- 1971-03-08 NO NO71871A patent/NO137209C/en unknown
- 1971-03-08 SE SE7102946A patent/SE399279B/en unknown
- 1971-03-09 NL NLAANVRAGE7103150,A patent/NL171468B/en not_active Application Discontinuation
- 1971-03-09 IE IE295/71A patent/IE35679B1/en unknown
- 1971-03-09 JP JP1224771A patent/JPS547804B1/ja active Pending
- 1971-03-09 DK DK109171AA patent/DK140673B/en not_active IP Right Cessation
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---|---|---|---|---|
US3899448A (en) * | 1972-02-07 | 1975-08-12 | Albright & Wilson | Detergent concentrate |
US3979340A (en) * | 1973-04-09 | 1976-09-07 | Colgate-Palmolive Company | Olefin sulfonate detergent compositions |
US3985687A (en) * | 1974-12-26 | 1976-10-12 | Colgate-Palmolive Company | Liquid detergent compositions of controlled viscosities |
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US5320783A (en) * | 1992-11-04 | 1994-06-14 | The Procter & Gamble Company | Detergent gels containing ethoxylated alkyl sulfate surfactants in hexagonal liquid crystal form |
US5607910A (en) * | 1993-06-30 | 1997-03-04 | Sherry; Alan E. | Detergent gels containing ethoxylated alkyl sulfates and secondary sulfonates |
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US20060189497A1 (en) * | 2002-07-30 | 2006-08-24 | Earl Jenevein | Wood preservative |
Also Published As
Publication number | Publication date |
---|---|
DE2110030A1 (en) | 1971-09-23 |
DK140673C (en) | 1980-03-17 |
BE763311A (en) | 1971-07-16 |
GB1339069A (en) | 1973-11-28 |
NO137209B (en) | 1977-10-10 |
FR2082249A5 (en) | 1971-12-10 |
JPS547804B1 (en) | 1979-04-10 |
SE399279B (en) | 1978-02-06 |
PH10228A (en) | 1976-10-04 |
FR2112766A6 (en) | 1972-06-23 |
NO137209C (en) | 1978-01-18 |
FI53134B (en) | 1977-10-31 |
FI53134C (en) | 1978-02-10 |
IE35679L (en) | 1971-09-09 |
IE35679B1 (en) | 1976-04-28 |
DK140673B (en) | 1979-10-22 |
CA955143A (en) | 1974-09-24 |
DE2110030C2 (en) | 1982-12-16 |
CH551485A (en) | 1974-07-15 |
NL171468B (en) | 1982-11-01 |
NL7103150A (en) | 1971-09-13 |
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