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BR9916644A - Kraft wood fibers for carboxyalkylcellulose - Google Patents

Kraft wood fibers for carboxyalkylcellulose

Info

Publication number
BR9916644A
BR9916644A BR9916644-5A BR9916644A BR9916644A BR 9916644 A BR9916644 A BR 9916644A BR 9916644 A BR9916644 A BR 9916644A BR 9916644 A BR9916644 A BR 9916644A
Authority
BR
Brazil
Prior art keywords
wood fibers
kraft
carboxyalkylcellulose
kraft wood
carboxialchylcellulose
Prior art date
Application number
BR9916644-5A
Other languages
Portuguese (pt)
Inventor
Sheng-Hsin Hu
Tong Sun
Xin Ning
Original Assignee
Kimberly Clark 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
Application filed by Kimberly Clark Co filed Critical Kimberly Clark Co
Publication of BR9916644A publication Critical patent/BR9916644A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/02—Alkyl or cycloalkyl ethers
    • C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
    • C08B11/10—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals
    • C08B11/12—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals, e.g. carboxymethylcellulose [CMC]
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Epidemiology (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Hematology (AREA)
  • Medicinal Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

"FIBRAS DE MADEIRA KRAFT PARA CARBOXIALQUILCELULOSE". é revelado um processo para produção de fibras demadeira kraft possuindo um teor de alfa-celulose maior do que 97%e uma viscosidade maior do que 40 centipoise. O processoenvolve pré-hidrolização de lascas de madeira dura com água,cozimento kraft, alvejamento e tratamento cáustico. A polparesultante pode ser convertida em superabsorventes decarboximetil celulose possuindo propriedades aperfeiçoadas,especialmente uma "absorvência sob carga"superior."KRAFT WOOD FIBERS FOR CARBOXIALCHYLCELLULOSE". a process is disclosed for producing kraft wood fibers having an alpha-cellulose content greater than 97% and a viscosity greater than 40 centipoise. The process involves pre-hydrolyzing hard wood chips with water, kraft cooking, bleaching and caustic treatment. The resulting resultant can be converted into carboxymethyl cellulose superabsorbents having improved properties, especially a higher "absorbency under load".

BR9916644-5A 1998-12-30 1999-12-29 Kraft wood fibers for carboxyalkylcellulose BR9916644A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11615598P 1998-12-30 1998-12-30
US46757999A 1999-12-20 1999-12-20
PCT/US1999/031287 WO2000039390A1 (en) 1998-12-30 1999-12-29 Kraft wood fibers for carboxyalkyl cellulose

Publications (1)

Publication Number Publication Date
BR9916644A true BR9916644A (en) 2001-10-30

Family

ID=26813935

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9916644-5A BR9916644A (en) 1998-12-30 1999-12-29 Kraft wood fibers for carboxyalkylcellulose

Country Status (9)

Country Link
EP (1) EP1144756A1 (en)
JP (1) JP2002533587A (en)
KR (1) KR20010103728A (en)
CN (1) CN1332818A (en)
AU (1) AU755173B2 (en)
BR (1) BR9916644A (en)
ID (1) ID29358A (en)
TR (1) TR200101898T2 (en)
WO (1) WO2000039390A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6686464B1 (en) 1999-04-26 2004-02-03 Bki Holding Corporation Cellulose ethers and method of preparing the same
AU2002220070A1 (en) * 2000-11-01 2002-05-15 Bki Holding Corporation Cellulose ethers and method of preparing the same
US7541396B2 (en) * 2004-12-29 2009-06-02 Weyerhaeuser Nr Company Method for making carboxyalkyl cellulose
CA2492884A1 (en) * 2005-01-13 2006-07-13 Stephane Chevigny A high efficiency process for particle size reduction of glass-like polysaccharides
US7771565B2 (en) 2006-02-21 2010-08-10 Packaging Corporation Of America Method of pre-treating woodchips prior to mechanical pulping
CN101967231B (en) * 2010-09-30 2012-06-20 华南理工大学 Production method of sodium carboxymethyl cellulose with low sodium content
JP5953909B2 (en) * 2012-04-27 2016-07-20 王子ホールディングス株式会社 Method for producing dissolving pulp
JP5966677B2 (en) * 2012-06-29 2016-08-10 日本製紙株式会社 Method for producing cellulose nanofiber
JP6196022B2 (en) * 2012-07-31 2017-09-13 日本製紙株式会社 Method for producing dissolved kraft pulp
JP2014208920A (en) * 2013-03-29 2014-11-06 日本製紙株式会社 Method of producing dissolving kraft pulp
JP6305715B2 (en) * 2013-09-30 2018-04-04 日本製紙株式会社 Method for producing dissolving pulp
JP2015198653A (en) * 2014-03-31 2015-11-12 日本製紙株式会社 Ruminant feed
JP6187619B2 (en) * 2016-03-07 2017-08-30 王子ホールディングス株式会社 Method for producing dissolving pulp
JP6581137B2 (en) * 2017-03-24 2019-09-25 日本製紙株式会社 Method for producing dissolved kraft pulp
JP6518287B2 (en) * 2017-06-30 2019-05-22 日本製紙株式会社 Method of producing dissolved kraft pulp
WO2019055921A2 (en) 2017-09-15 2019-03-21 Hamilton Robert T Cellulose composite materials
CN111379187B (en) * 2018-12-28 2022-03-15 安徽雪龙纤维科技股份有限公司 Insulating pulp board and production method thereof
EP3885488A4 (en) * 2018-12-31 2022-01-19 Unicharm Corporation PROCESS FOR PRODUCTION OF RAW MATERIAL OF PULPE FIBER AND RAW MATERIAL OF PULPE FIBER AS CELLULOSE RAW MATERIAL

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645576A (en) * 1948-03-10 1953-07-14 Celanese Corp Purifying wood pulp
BE526577A (en) * 1953-02-18
US2882965A (en) * 1955-02-23 1959-04-21 Columbia Cellulose Company Ltd High viscosity, high percentage alpha cellulose from sulfite pulp
US4361463A (en) * 1979-10-09 1982-11-30 Billerud Uddeholm Aktiebolag Method in the production of dissolving pulp
US5247072A (en) * 1991-10-25 1993-09-21 Kimberly-Clark Corporation Carboxyalkyl polysaccharides having improved absorbent properties and process for the preparation thereof
US5550189A (en) * 1992-04-17 1996-08-27 Kimberly-Clark Corporation Modified polysaccharides having improved absorbent properties and process for the preparation thereof

Also Published As

Publication number Publication date
KR20010103728A (en) 2001-11-23
AU755173B2 (en) 2002-12-05
AU2400900A (en) 2000-07-31
JP2002533587A (en) 2002-10-08
TR200101898T2 (en) 2001-12-21
ID29358A (en) 2001-08-23
CN1332818A (en) 2002-01-23
WO2000039390A1 (en) 2000-07-06
EP1144756A1 (en) 2001-10-17

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6O E 7O ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1913 DE 04/09/2007.