WO1996020015A3 - Chitosan salts and process for the preparation thereof - Google Patents

Chitosan salts and process for the preparation thereof Download PDF

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Publication number
WO1996020015A3
WO1996020015A3 PCT/US1995/016191 US9516191W WO9620015A3 WO 1996020015 A3 WO1996020015 A3 WO 1996020015A3 US 9516191 W US9516191 W US 9516191W WO 9620015 A3 WO9620015 A3 WO 9620015A3
Authority
WO
WIPO (PCT)
Prior art keywords
water
chitosan
preparation
chitosan salt
optionally
Prior art date
Application number
PCT/US1995/016191
Other languages
French (fr)
Other versions
WO1996020015B1 (en
WO1996020015A2 (en
Inventor
Jacek Dutkiewicz
Xin Ning
Jian Qin
Tong Sun
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
Priority to AU45167/96A priority Critical patent/AU689692B2/en
Priority to JP8520480A priority patent/JPH10511720A/en
Priority to DE69527370T priority patent/DE69527370T2/en
Priority to EP95943779A priority patent/EP0799247B1/en
Priority to MX9704660A priority patent/MX212300B/en
Priority to KR1019970704277A priority patent/KR100412190B1/en
Priority to TW84113624A priority patent/TW323286B/zh
Publication of WO1996020015A2 publication Critical patent/WO1996020015A2/en
Publication of WO1996020015A3 publication Critical patent/WO1996020015A3/en
Publication of WO1996020015B1 publication Critical patent/WO1996020015B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
    • C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
    • C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof
    • 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
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/28—Polysaccharides or their derivatives
    • 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

Abstract

Disclosed is a method for producing a water-swellable, water-insoluble chitosan salt having improved absorption properties. The method involves forming a mixture of a chitosan, water, an acid, and, optionally, a crosslinking agent, recovering the formed chitosan salt from the mixture and, optionally, treating said recovered chitosan salt with heat or under humid conditions.
PCT/US1995/016191 1994-12-22 1995-12-14 Chitosan salts and process for the preparation thereof WO1996020015A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AU45167/96A AU689692B2 (en) 1994-12-22 1995-12-14 Chitosan salts and process for the preparation thereof
JP8520480A JPH10511720A (en) 1994-12-22 1995-12-14 Chitosan salts and the process of preparing them
DE69527370T DE69527370T2 (en) 1994-12-22 1995-12-14 CHITOSAN SALTS AND METHOD FOR THE PRODUCTION THEREOF
EP95943779A EP0799247B1 (en) 1994-12-22 1995-12-14 Chitosan salts and process for the preparation thereof
MX9704660A MX212300B (en) 1994-12-22 1995-12-14 Chitosan salts and process for preparing them
KR1019970704277A KR100412190B1 (en) 1994-12-22 1995-12-14 Chitosan salts and process for the preparation thereof
TW84113624A TW323286B (en) 1994-12-22 1995-12-20

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/362,395 1994-12-22
US08/362,395 US5599916A (en) 1994-12-22 1994-12-22 Chitosan salts having improved absorbent properties and process for the preparation thereof

Publications (3)

Publication Number Publication Date
WO1996020015A2 WO1996020015A2 (en) 1996-07-04
WO1996020015A3 true WO1996020015A3 (en) 1996-09-06
WO1996020015B1 WO1996020015B1 (en) 1996-10-24

Family

ID=23425957

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/016191 WO1996020015A2 (en) 1994-12-22 1995-12-14 Chitosan salts and process for the preparation thereof

Country Status (21)

Country Link
US (1) US5599916A (en)
EP (1) EP0799247B1 (en)
JP (1) JPH10511720A (en)
KR (1) KR100412190B1 (en)
AR (1) AR000398A1 (en)
AU (1) AU689692B2 (en)
CA (1) CA2208892A1 (en)
DE (1) DE69527370T2 (en)
EG (1) EG21032A (en)
FR (1) FR2728575B1 (en)
GB (1) GB2296250B (en)
MX (1) MX212300B (en)
MY (1) MY113109A (en)
PE (1) PE12597A1 (en)
PH (1) PH11995051943B1 (en)
SV (1) SV1995000091A (en)
TR (1) TR199501616A2 (en)
TW (1) TW323286B (en)
UY (1) UY24123A1 (en)
WO (1) WO1996020015A2 (en)
ZA (1) ZA9510740B (en)

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Also Published As

Publication number Publication date
KR100412190B1 (en) 2004-04-29
MX212300B (en) 2002-12-19
GB9526240D0 (en) 1996-02-21
AU689692B2 (en) 1998-04-02
PE12597A1 (en) 1997-04-30
FR2728575B1 (en) 1997-06-06
KR987000880A (en) 1998-04-30
JPH10511720A (en) 1998-11-10
US5599916A (en) 1997-02-04
GB2296250B (en) 1997-09-10
PH11995051943B1 (en) 1999-07-05
CA2208892A1 (en) 1996-07-04
EP0799247B1 (en) 2002-07-10
UY24123A1 (en) 1996-06-11
ZA9510740B (en) 1996-06-20
SV1995000091A (en) 1996-07-25
TW323286B (en) 1997-12-21
FR2728575A1 (en) 1996-06-28
GB2296250A (en) 1996-06-26
AR000398A1 (en) 1997-06-18
DE69527370T2 (en) 2002-12-12
MY113109A (en) 2001-11-30
DE69527370D1 (en) 2002-08-14
AU4516796A (en) 1996-07-19
TR199501616A2 (en) 1996-07-21
WO1996020015A2 (en) 1996-07-04
MX9704660A (en) 2000-04-30
EG21032A (en) 2000-09-30
EP0799247A2 (en) 1997-10-08

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