CA2406517A1 - Alkaline pulp having low average degree of polymerization values and method of producing the same - Google Patents

Alkaline pulp having low average degree of polymerization values and method of producing the same Download PDF

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Publication number
CA2406517A1
CA2406517A1 CA002406517A CA2406517A CA2406517A1 CA 2406517 A1 CA2406517 A1 CA 2406517A1 CA 002406517 A CA002406517 A CA 002406517A CA 2406517 A CA2406517 A CA 2406517A CA 2406517 A1 CA2406517 A1 CA 2406517A1
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CA
Canada
Prior art keywords
average degree
low average
producing
same
polymerization
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.)
Granted
Application number
CA002406517A
Other languages
French (fr)
Other versions
CA2406517C (en
Inventor
James E. Ii Sealey
Amar N. Neogi
W. Harvey Persinger Jr.
Mengkui Luo
Vincent A. Roscelli
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Weyerhaeuser NR Co
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Individual
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
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Application filed by Individual filed Critical Individual
Publication of CA2406517A1 publication Critical patent/CA2406517A1/en
Application granted granted Critical
Publication of CA2406517C publication Critical patent/CA2406517C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/18—Formation of filaments, threads, or the like by means of rotating spinnerets
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/02—Material of vegetable origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/23957—Particular shape or structure of pile
    • Y10T428/23964—U-, V-, or W-shaped or continuous strand, filamentary material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y10T428/2965—Cellulosic

Abstract

The present invention provides compositions, useful for making lyocell fibers, having a high hemicellulose content, a low copper number and including cellulose that has a low average degree of polymerization (D.P.) and a narrow molecular weight distribution. Further, the present invention provides processes for making compositions, useful for making lyocell fibers, having a high hemicellulose content, a low copper number and including cellulose that has a low average degree of polymerization and a narrow molecular weight distribution. The present invention also provides lyocell fibers containing a high proportion of hemicellulose.
CA002406517A 2000-05-18 2001-04-11 Alkaline pulp having low average degree of polymerization values and method of producing the same Expired - Lifetime CA2406517C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/574,538 US6331354B1 (en) 1996-08-23 2000-05-18 Alkaline pulp having low average degree of polymerization values and method of producing the same
US09/574,538 2000-05-18
PCT/US2001/011897 WO2001088236A2 (en) 2000-05-18 2001-04-11 Alkaline pulp having low average degree of polymerization values and method of producing the same

Publications (2)

Publication Number Publication Date
CA2406517A1 true CA2406517A1 (en) 2001-11-22
CA2406517C CA2406517C (en) 2009-06-30

Family

ID=24296571

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002406517A Expired - Lifetime CA2406517C (en) 2000-05-18 2001-04-11 Alkaline pulp having low average degree of polymerization values and method of producing the same

Country Status (14)

Country Link
US (4) US6331354B1 (en)
EP (1) EP1311717B1 (en)
JP (2) JP2003533602A (en)
KR (1) KR100834248B1 (en)
CN (1) CN100402741C (en)
AT (1) ATE335873T1 (en)
AU (1) AU2001253399A1 (en)
BR (1) BR0110890B1 (en)
CA (1) CA2406517C (en)
DE (1) DE60122169T2 (en)
ES (1) ES2265428T3 (en)
MX (1) MXPA02011317A (en)
TW (1) TWI282829B (en)
WO (1) WO2001088236A2 (en)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6331354B1 (en) 1996-08-23 2001-12-18 Weyerhaeuser Company Alkaline pulp having low average degree of polymerization values and method of producing the same
US6471727B2 (en) * 1996-08-23 2002-10-29 Weyerhaeuser Company Lyocell fibers, and compositions for making the same
US6797113B2 (en) * 1999-02-24 2004-09-28 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell pulps method
US6686039B2 (en) * 1999-02-24 2004-02-03 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell pulps
US6686040B2 (en) * 1999-02-24 2004-02-03 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell products
US6685856B2 (en) * 1999-02-24 2004-02-03 Weyerhaeuser Company Use of thinnings and other low specific gravity wood for lyocell products method
US20030032705A1 (en) * 2001-08-07 2003-02-13 Otter James William Ethylene terpolymer adhesive for condensing furnace heat exchanger laminate material
US6790527B1 (en) * 2003-04-16 2004-09-14 Weyerhaeuser Company Lyocell fiber from unbleached pulp
US7097737B2 (en) * 2003-04-16 2006-08-29 Weyerhaeuser Company Method of making a modified unbleached pulp for lyocell products
US6833187B2 (en) * 2003-04-16 2004-12-21 Weyerhaeuser Company Unbleached pulp for lyocell products
US20040207110A1 (en) * 2003-04-16 2004-10-21 Mengkui Luo Shaped article from unbleached pulp and the process
JP4550437B2 (en) * 2004-01-20 2010-09-22 ポリマテック株式会社 Polybenzazole molded body and method for producing the same
US20060065377A1 (en) * 2004-09-30 2006-03-30 Mengkui Luo High PH treatment of pulp in a bleach sequence to produce pulp having low D.P. and low copper number for use in lyocell manufacture
US20060070711A1 (en) * 2004-09-30 2006-04-06 Mengkui Luo Low pH treatment of pulp in a bleach sequence to produce pulp having low D.P. and low copper number for use in lyocell manufacture
US20060219376A1 (en) * 2005-03-31 2006-10-05 Mengkui Luo Microcrystalline cellulose and method for making
US20060223992A1 (en) * 2005-03-31 2006-10-05 Mengkui Luo Microcrystalline cellulose and method for making
PT1907623E (en) * 2005-05-02 2012-07-16 Int Paper Co Ligno cellulosic materials and the products made therefrom
CN100395385C (en) * 2005-11-16 2008-06-18 东华大学 Preparation method of lyocell fiber used for cord thread
US8163215B2 (en) * 2005-12-23 2012-04-24 Basf Aktiengesellschaft Method of forming regenerated carbohydrates with solvent systems based on molten ionic liquids
US7718036B2 (en) * 2006-03-21 2010-05-18 Georgia Pacific Consumer Products Lp Absorbent sheet having regenerated cellulose microfiber network
US8540846B2 (en) 2009-01-28 2013-09-24 Georgia-Pacific Consumer Products Lp Belt-creped, variable local basis weight multi-ply sheet with cellulose microfiber prepared with perforated polymeric belt
US8187422B2 (en) 2006-03-21 2012-05-29 Georgia-Pacific Consumer Products Lp Disposable cellulosic wiper
US8187421B2 (en) 2006-03-21 2012-05-29 Georgia-Pacific Consumer Products Lp Absorbent sheet incorporating regenerated cellulose microfiber
AT503610B1 (en) * 2006-05-10 2012-03-15 Chemiefaser Lenzing Ag METHOD FOR PRODUCING A PULP
US7390566B2 (en) * 2006-06-30 2008-06-24 Weyerhaeuser Company Viscose product
US7670678B2 (en) * 2006-12-20 2010-03-02 The Procter & Gamble Company Fibers comprising hemicellulose and processes for making same
US8177938B2 (en) * 2007-01-19 2012-05-15 Georgia-Pacific Consumer Products Lp Method of making regenerated cellulose microfibers and absorbent products incorporating same
US20080241536A1 (en) * 2007-03-29 2008-10-02 Weyerhaeuser Co. Method for processing cellulose in ionic liquids and fibers therefrom
CA2735867C (en) 2008-09-16 2017-12-05 Dixie Consumer Products Llc Food wrap basesheet with regenerated cellulose microfiber
US8617354B2 (en) * 2009-03-09 2013-12-31 Kiram Ab Shaped cellulose manufacturing process combined with a pulp mill recovery system
US9845575B2 (en) * 2009-05-14 2017-12-19 International Paper Company Fibrillated blend of lyocell low DP pulp
US9512563B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Surface treated modified cellulose from chemical kraft fiber and methods of making and using same
US9512237B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Method for inhibiting the growth of microbes with a modified cellulose fiber
US9511167B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same
MX2011012494A (en) 2009-05-28 2012-02-21 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same.
AU2012268700B2 (en) 2011-05-23 2017-02-02 Gp Cellulose Gmbh Softwood kraft fiber having improved whiteness and brightness and methods of making and using the same
WO2013086217A1 (en) 2011-12-06 2013-06-13 Masco Corporation Of Indiana Ozone distribution in a faucet
TWI628331B (en) 2012-01-12 2018-07-01 Ｇｐ纖維股份有限公司 A low viscosity kraft fiber having reduced yellowing properties and methods of making and using the same
EP2815008B1 (en) * 2012-02-14 2018-12-26 International Paper Company Composite polymer
JP6242859B2 (en) 2012-04-18 2017-12-06 ゲーペー ツェルローゼ ゲーエムベーハー Use of surfactants to treat pulp and improve kraft pulp incorporation into fibers for the production of viscose and other secondary fiber products
JP6075976B2 (en) * 2012-06-15 2017-02-08 日本製紙株式会社 Method for producing dissolved kraft pulp
US9322133B2 (en) 2012-11-30 2016-04-26 Api Intellectual Property Holdings, Llc Processes and apparatus for producing nanocellulose, and compositions and products produced therefrom
EP2954115B1 (en) 2013-02-08 2022-01-12 GP Cellulose GmbH Softwood kraft fiber having an improved a-cellulose content and its use in the production of chemical cellulose products
US10138598B2 (en) 2013-03-14 2018-11-27 Gp Cellulose Gmbh Method of making a highly functional, low viscosity kraft fiber using an acidic bleaching sequence and a fiber made by the process
EP2971338A2 (en) 2013-03-15 2016-01-20 GP Cellulose GmbH A low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same
CO7150300A1 (en) 2013-06-27 2014-12-29 Univ Antioquia Production of a new multipurpose agglomerated cellulosic excipient
US20150184338A1 (en) 2013-12-31 2015-07-02 Weyerhaeuser Nr Company Treated kraft pulp compositions and methods of making the same
SE538064C2 (en) * 2014-06-17 2016-02-23 Valmet Oy Method of producing dissolving pulp from lignocellulosic materials
SE538752C2 (en) * 2014-11-21 2016-11-08 Innventia Ab Process for the production of a treated pulp, treated pulp, and textile fibres produced from the treated pulp
US9382337B2 (en) * 2014-12-09 2016-07-05 Rayonier Performance Fibers, Llc Hydrogel forming material from byproduct pulp fines
KR101714384B1 (en) * 2014-12-26 2017-03-09 도레이케미칼 주식회사 Thermaplastic cellulose ester yarn, and Manufacturing method thereof
SG10201503723TA (en) * 2015-05-12 2016-12-29 Pt Sateri Viscose Internat Dissolving Pulp
US11458214B2 (en) 2015-12-21 2022-10-04 Delta Faucet Company Fluid delivery system including a disinfectant device
SE1650050A1 (en) * 2016-01-18 2017-04-25 Valmet Oy Chlorine dioxide stage for controlling viscosity in dissolving pulps
US9771687B2 (en) 2016-02-25 2017-09-26 International Paper Company Crosslinked cellulose as precursor in production of high-grade cellulose derivatives and related technology
JP6423838B2 (en) * 2016-09-23 2018-11-14 日本製紙株式会社 Method for producing dissolved kraft pulp
CA3040734A1 (en) 2016-11-16 2018-05-24 Gp Cellulose Gmbh Modified cellulose from chemical fiber and methods of making and using the same
TW201938591A (en) 2018-03-06 2019-10-01 奧地利商蘭仁股份有限公司 Dissolving pulp
EP3536833A1 (en) 2018-03-06 2019-09-11 Lenzing Aktiengesellschaft Lyocell fibres without mannan
TWI814782B (en) 2018-03-06 2023-09-11 奧地利商蘭仁股份有限公司 Solvent-spun cellulosic fibre
EP3536850A1 (en) * 2018-03-06 2019-09-11 Lenzing Aktiengesellschaft Pulp and lyocell articles with reduced cellulose content
EP3536852A1 (en) 2018-03-06 2019-09-11 Lenzing Aktiengesellschaft Pulp and lyocell fibre with adjustable degree of whiteness
US11352748B2 (en) 2018-07-31 2022-06-07 International Paper Company Crosslinked pulps, cellulose ether products made therefrom; and related methods of making pulps and cellulose ether products
KR102254525B1 (en) * 2020-12-14 2021-05-24 (주)네오피에스 Eco-friendly fabric with excellent UV protection and antibacterial properties and its manufacturing method
CN112853796A (en) * 2021-01-07 2021-05-28 杭州融凯盛科技有限公司 Preparation method for modifying papermaking pulp into pulp special for lyocell fibers

Family Cites Families (125)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1860432A (en) * 1928-08-22 1932-05-31 Brown Co Process of lowering the solution viscosity of cellulose fiber
US2811518A (en) * 1955-06-07 1957-10-29 Rayonier Inc Alkaline refining of wood pulp
NL113985C (en) 1957-01-28
US3023104A (en) 1960-07-05 1962-02-27 American Viscose Corp Food compositions incorporating cellulose crystallite aggregates
US3141875A (en) 1961-03-15 1964-07-21 Fmc Corp Crystallite aggregates disintegrated in acid medium
US3251824A (en) 1961-08-22 1966-05-17 Fmc Corp Method of preparing stable aqueous dispersion-forming cellulosic aggregates
US3255071A (en) 1963-10-25 1966-06-07 Theodor N Kleinert Process for production of alkali cellulose in the absence of an aqueous liquid phase
US3388119A (en) 1965-07-19 1968-06-11 Fmc Corp Non-fibrous particulate cellulose and method of making same
US3539365A (en) 1967-02-13 1970-11-10 Fmc Corp Dispersing and stabilizing agent comprising beta-1,4 glucan and cmc and method for its preparation
SE314581B (en) 1968-10-29 1969-09-08 Mo Och Domsjoe Ab
SE335053B (en) 1969-05-13 1971-05-10 Mo Och Domsjoe Ab
US3632469A (en) * 1969-06-05 1972-01-04 Ethyl Corp Process for the manufacture of dissolving grade pulp
US3833438A (en) 1972-08-30 1974-09-03 Asahi Chemical Ind Process for the manufacture of a non-woven web of continuous filaments through the wet stretch spinning method
DE2311180C3 (en) 1973-03-07 1982-02-25 Chemiefaser Lenzing AG, 4860 Lenzing, Oberösterreich Process for the production of flame-retardant regenerated cellulose fibers
US4338158A (en) 1976-04-09 1982-07-06 Weyerhaeuser Company Pulping in the presence of a protector
AU508480B2 (en) 1977-04-13 1980-03-20 Asahi Kasei Kogyo Kabushiki Kaisha Microcrystalline cellulose excipient and pharmaceutical composition containing thesame
US4416698A (en) 1977-07-26 1983-11-22 Akzona Incorporated Shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent and a process for making the article
US4211574A (en) 1977-07-26 1980-07-08 Akzona Incorporated Process for making a solid impregnated precursor of a solution of cellulose
US4246221A (en) 1979-03-02 1981-01-20 Akzona Incorporated Process for shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent
US4144080A (en) 1977-07-26 1979-03-13 Akzona Incorporated Process for making amine oxide solution of cellulose
US4142913A (en) 1977-07-26 1979-03-06 Akzona Incorporated Process for making a precursor of a solution of cellulose
US4145532A (en) 1977-11-25 1979-03-20 Akzona Incorporated Process for making precipitated cellulose
US4196282A (en) 1977-11-25 1980-04-01 Akzona Incorporated Process for making a shapeable cellulose and shaped cellulose products
US4256613A (en) 1977-11-25 1981-03-17 Akzona Incorporated Composition and process for making precipitated nylon-cellulose biconstituent composition
US4324593A (en) 1978-09-01 1982-04-13 Akzona Incorporated Shapeable tertiary amine N-oxide solution of cellulose, shaped cellulose product made therefrom and process for preparing the shapeable solution and cellulose products
US4295925A (en) 1979-06-15 1981-10-20 Weyerhaeuser Company Treating pulp with oxygen
US4298426A (en) 1979-06-15 1981-11-03 Weyerhaeuser Company Method and apparatus for treating pulp with oxygen in a multi-stage bleaching sequence
US4295927A (en) 1979-06-15 1981-10-20 Weyerhaeuser Company Method and apparatus for treating pulp with oxygen and storing the treated pulp
US4295926A (en) 1979-06-15 1981-10-20 Weyerhaeuser Company Method and apparatus for treating pulp with oxygen
US4290815A (en) 1980-01-28 1981-09-22 Akzona Incorporated Use of co-solvents in amine N-oxide solutions
SE434284B (en) 1980-05-07 1984-07-16 Mo Och Domsjoe Ab PROCEDURES FOR OXYGEN DELIGNIFICATION OF CHEMICAL CONSUMPED CELLULOSAMASSA TO WHICH AROMATIC DIAMINES ARE PROVIDED
DE3034685C2 (en) 1980-09-13 1984-07-05 Akzo Gmbh, 5600 Wuppertal Cellulose molding and spinning mass with low proportions of low molecular weight breakdown products
DE3367232D1 (en) 1982-06-08 1986-12-04 Courtaulds Plc Polymer solutions
JPS60139873A (en) 1983-12-26 1985-07-24 旭化成株式会社 Modification of fiber material
GB2208277B (en) 1987-07-30 1991-11-13 Courtaulds Plc Cellulosic fibre
US4939016A (en) 1988-03-18 1990-07-03 Kimberly-Clark Corporation Hydraulically entangled nonwoven elastomeric web and method of forming the same
US5094690A (en) 1988-08-16 1992-03-10 Lenzing Aktiengesellschaft Process and arrangement for preparing a solution of cellulose
US5330567A (en) 1988-08-16 1994-07-19 Lenzing Aktiengesellschaft Process and arrangement for preparing a solution of cellulose
AT395246B (en) 1990-07-16 1992-10-27 Chemiefaser Lenzing Ag SOLUTION OF CELLULOSE IN WATER AND N-METHYL-MORPHOLIN-N-OXIDE
US5520869A (en) 1990-10-12 1996-05-28 Courtaulds Plc Treatment of fibre
AT395724B (en) 1990-12-07 1993-02-25 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSE MOLDED BODIES
DE4040242A1 (en) 1990-12-15 1992-06-17 Peter Roger Dipl Ing Nyssen METHOD AND DEVICE FOR PRODUCING FINE FIBERS FROM THERMOPLASTIC POLYMERS
GB9103297D0 (en) 1991-02-15 1991-04-03 Courtaulds Plc Fibre production method
GB9109091D0 (en) 1991-04-25 1991-06-12 Courtaulds Plc Dyeing
CA2071185C (en) 1991-06-14 1995-02-07 Jorge Luiz Colodette Process for delignifying lignocellulosic pulp by means of oxygen
GB9122318D0 (en) 1991-10-21 1991-12-04 Courtaulds Plc Treatment of elongate members
JP3190979B2 (en) 1991-11-19 2001-07-23 旭化成株式会社 Method for producing cellulose molded article
US5605567A (en) 1991-12-05 1997-02-25 Weyerhaueser Company Method of producing cellulose dope
US5277857A (en) 1992-01-17 1994-01-11 Viskase Corporation Method of making a cellulose food casing
ATA53792A (en) 1992-03-17 1995-02-15 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES, DEVICE FOR IMPLEMENTING THE METHOD AND USE OF A SPINNING DEVICE
AT397927B (en) 1992-05-27 1994-08-25 Chemiefaser Lenzing Ag BACKFLOWABLE FILTER DEVICE FOR FILTRATION OF HIGH VISCUS LIQUIDS
US5362867A (en) 1992-05-27 1994-11-08 Formosa Chemicals & Fibre Corporation Method of making cellulose yarn solution
US5417909A (en) 1992-06-16 1995-05-23 Thuringisches Institut Fur Textil- Und Kunststoff-Forschung E.V. Process for manufacturing molded articles of cellulose
US5693296A (en) 1992-08-06 1997-12-02 The Texas A&M University System Calcium hydroxide pretreatment of biomass
GB2270030B (en) 1992-08-19 1996-06-19 Courtaulds Plc Method of producing fibre or film
EP0590401B1 (en) 1992-09-24 1999-12-15 Daicel Chemical Industries, Ltd. Process for the preparation of a fatty acid ester of cellulose
AT398588B (en) 1992-12-02 1994-12-27 Voest Alpine Ind Anlagen METHOD FOR THE PRODUCTION OF VISCOSE CELLS
JPH06220213A (en) 1993-01-22 1994-08-09 Mokushitsu Shinsozai Gijutsu Kenkyu Kumiai Lignocellulose molding and its preparation
FR2700772A1 (en) 1993-01-27 1994-07-29 Michelin Rech Tech Composition, capable of giving fibers or films, based on cellulose formate.
JPH06234881A (en) 1993-02-10 1994-08-23 Mitsubishi Rayon Co Ltd Liquid-crystalline cellulose solution
ATE217896T1 (en) 1993-02-16 2002-06-15 Mitsubishi Rayon Co CELLULOSE SOLUTION FOR SHAPING AND METHOD FOR PRODUCING MOLDING COMPOUNDS THEREFROM
GB9304151D0 (en) 1993-03-02 1993-04-21 Courtaulds Plc Fibre
BR9400682A (en) 1993-03-05 1994-10-18 Akzo Nv Apparatus for the fusing spinning of multifilament yarns and their application
GB9304887D0 (en) 1993-03-10 1993-04-28 Courtaulds Plc Fibre treatment
US5662858A (en) 1993-04-21 1997-09-02 Lenzing Aktiengesellschaft Process for the production of cellulose fibres having a reduced tendency to fibrillation
AT399348B (en) 1993-05-05 1995-04-25 Chemiefaser Lenzing Ag FORM- OR SPIDING MASS CONTAINING CELLULOSE AND USE OF CERTAIN SUBSTANCES FOR YOUR STABILIZATION
GB9309617D0 (en) 1993-05-11 1993-06-23 Courtaulds Fibres Ltd Fibre production process
US5370322A (en) 1993-05-24 1994-12-06 Courtaulds Fibres (Holdings) Limited Filtering particulate cellulosic-based material
MY131648A (en) 1993-05-24 2007-08-30 Courtaulds Fibres Holdings Ltd Manufacture of crimped solvent-spun cellulose fibre
TW295607B (en) 1993-05-24 1997-01-11 Courtaulds Fibres Holdings Ltd
US5652001A (en) 1993-05-24 1997-07-29 Courtaulds Fibres Limited Spinnerette
TW256860B (en) 1993-05-24 1995-09-11 Courtaulds Fibres Holdings Ltd
US5354524A (en) 1993-05-24 1994-10-11 Alan Sellars Monitoring concentration of dope in product manufacture
US5527178A (en) 1993-05-24 1996-06-18 Courtaulds Fibres (Holdings) Limited Jet assembly
TR28441A (en) 1993-05-24 1996-07-04 Courtaulds Fibres Holdings Ltd Spinning cells that can be used to coagulate lyocell filaments.
US5413631A (en) 1993-05-24 1995-05-09 Courtaulds (Holding) Limited Formation of a cellulose-based premix
US5354371A (en) 1993-05-28 1994-10-11 Courtaulds Fibres (Holdings) Limited Transport of solutions of cellulose through pipes
JPH0716222A (en) 1993-06-30 1995-01-20 Hitachi Medical Corp Ultrasonic transmitting and receiving circuit
AT401271B (en) 1993-07-08 1996-07-25 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSE FIBERS
AT403584B (en) 1993-09-13 1998-03-25 Chemiefaser Lenzing Ag METHOD AND DEVICE FOR PRODUCING CELLULOSIC FLAT OR TUBE FILMS
AT399519B (en) 1993-09-14 1995-05-26 Chemiefaser Lenzing Ag FORM- OR SPINNING CONTAINER CONTAINING CELLULOSE AND METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES
AT400581B (en) 1993-10-19 1996-01-25 Chemiefaser Lenzing Ag METHOD FOR PRODUCING SOLUTIONS OF CELLULOSE
ATA249893A (en) 1993-12-10 1994-12-15 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES AND MOLDED OR. SPIDING MASS
DE4342442C2 (en) * 1993-12-13 1996-11-21 Akzo Nobel Nv Process for the production of level-off DP cellulose (LODP cellulose) and its disaggregation to microcrystalline cellulose
US5629055A (en) 1994-02-14 1997-05-13 Pulp And Paper Research Institute Of Canada Solidified liquid crystals of cellulose with optically variable properties
ATA43094A (en) 1994-03-01 1995-04-15 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES, SOLUTION OF A TERT. AMINOXIDS AND THEIR WORK-UP
GB9404510D0 (en) 1994-03-09 1994-04-20 Courtaulds Fibres Holdings Ltd Fibre treatment
GB9407496D0 (en) 1994-04-15 1994-06-08 Courtaulds Fibres Holdings Ltd Fibre treatment
GB9408742D0 (en) 1994-05-03 1994-06-22 Courtaulds Fibres Holdings Ltd Fabric treatment
SE9401771D0 (en) * 1994-05-24 1994-05-24 Hans Olof Samuelson Process for removal of metal compounds in lignocellulosic pulp
GB9410912D0 (en) 1994-06-01 1994-07-20 Courtaulds Plc Fibre treatment
FI95607C (en) 1994-06-03 1996-02-26 Valtion Teknillinen Process and enzyme preparations for treating cellulose pulp
DE4420304C1 (en) 1994-06-10 1995-09-21 Fraunhofer Ges Forschung Flexible cellulose, low modulus cellulose fibres for textile applications
GB9412501D0 (en) 1994-06-22 1994-08-10 Courtaulds Fibres Holdings Ltd Manufacture of fibre
GB9412500D0 (en) 1994-06-22 1994-08-10 Courtaulds Fibres Holdings Ltd Fibre manufacture
AT401393B (en) 1994-09-05 1996-08-26 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSE FIBERS
AT401392B (en) 1994-09-05 1996-08-26 Chemiefaser Lenzing Ag METHOD FOR PRODUCING A CELLULOSIC MOLDED BODY
FI102301B (en) 1994-10-13 1998-11-13 Andritz Oy Method for treating cellulosic pulps
US5545371A (en) 1994-12-15 1996-08-13 Ason Engineering, Inc. Process for producing non-woven webs
WO1996025552A1 (en) 1995-02-17 1996-08-22 Ahlstrom Machinery Oy Method of pretreating pulp to be bleached with peroxide
WO1996027700A1 (en) 1995-03-03 1996-09-12 Akzo Nobel N.V. Centrifugal spinning process for spinnable solutions
AT402411B (en) 1995-04-19 1997-05-26 Chemiefaser Lenzing Ag PLANT AND INTEGRATED FILM AND FIBER FACTORY FOR THE PRODUCTION OF CELLULOSIC FILMS AND FIBERS
AT402410B (en) 1995-04-19 1997-05-26 Chemiefaser Lenzing Ag METHOD FOR PRODUCING A CELLULOSE SUSPENSION
AT405576B (en) 1995-05-04 1999-09-27 Chemiefaser Lenzing Ag METHOD FOR CONTROLLING A FLOWING CELLULOSE SUSPENSION
AT403057B (en) 1995-05-09 1997-11-25 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES
FR2735794B1 (en) 1995-06-26 1997-09-19 Elysees Balzac Financiere PROCESS FOR THE PREPARATION OF A MIXTURE OF CELLULOSIC FIBERS AND MICROFIBERS
AT403296B (en) 1995-08-11 1997-12-29 Chemiefaser Lenzing Ag METHOD FOR PRODUCING A CELLULOSE MOLDED BODY
AT402739B (en) 1995-09-19 1997-08-25 Chemiefaser Lenzing Ag METHOD FOR PRODUCING A CELLULOSIC MOLDED BODY
FI105701B (en) 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Method and arrangement for treatment of pulp
US5762797A (en) 1995-12-15 1998-06-09 Patrick; Gilbert Antimicrobial filter cartridge
WO1997030196A1 (en) 1996-02-14 1997-08-21 Akzo Nobel N.V. Process for preparing cellulose fibres and filaments
DE19628263A1 (en) 1996-07-12 1998-01-15 Fraunhofer Ges Forschung Process for the preparation of cellulose solutions in water-containing amine oxide
US6221487B1 (en) * 1996-08-23 2001-04-24 The Weyerhauser Company Lyocell fibers having enhanced CV properties
US6235392B1 (en) 1996-08-23 2001-05-22 Weyerhaeuser Company Lyocell fibers and process for their preparation
US6210801B1 (en) * 1996-08-23 2001-04-03 Weyerhaeuser Company Lyocell fibers, and compositions for making same
US6331354B1 (en) * 1996-08-23 2001-12-18 Weyerhaeuser Company Alkaline pulp having low average degree of polymerization values and method of producing the same
US6306334B1 (en) 1996-08-23 2001-10-23 The Weyerhaeuser Company Process for melt blowing continuous lyocell fibers
DE69716092T2 (en) * 1996-08-23 2003-01-30 Weyerhaeuser Co LYOCELL FIBERS AND METHOD FOR THEIR PRODUCTION
US6057438A (en) * 1996-10-11 2000-05-02 Eastman Chemical Company Process for the co-production of dissolving-grade pulp and xylan
US5695377A (en) 1996-10-29 1997-12-09 Kimberly-Clark Worldwide, Inc. Nonwoven fabrics having improved fiber twisting and crimping
AU4968497A (en) 1996-11-21 1998-06-10 Toyo Boseki Kabushiki Kaisha Regenerated cellulosic fibers and process for producing the same
AU9778398A (en) * 1997-10-01 1999-04-23 Weyerhaeuser Company Cellulose treatment and the resulting product
US6001303A (en) 1997-12-19 1999-12-14 Kimberly-Clark Worldwide, Inc. Process of making fibers
GB2337957A (en) 1998-06-05 1999-12-08 Courtaulds Fibres Method of manufacture of a nonwoven fabric
DE19856582C1 (en) * 1998-12-08 2001-03-15 Rhodia Acetow Ag Process for the production of chemical pulp from wood chips

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US6440523B1 (en) 2002-08-27
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