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PE12597A1 - Sales de quitosan con mejores propiedades absorbentes y proceso para su preparacion - Google Patents

Sales de quitosan con mejores propiedades absorbentes y proceso para su preparacion

Info

Publication number
PE12597A1
PE12597A1 PE1995287591A PE28759195A PE12597A1 PE 12597 A1 PE12597 A1 PE 12597A1 PE 1995287591 A PE1995287591 A PE 1995287591A PE 28759195 A PE28759195 A PE 28759195A PE 12597 A1 PE12597 A1 PE 12597A1
Authority
PE
Peru
Prior art keywords
quitosan
around
water
salt
mixture
Prior art date
Application number
PE1995287591A
Other languages
English (en)
Inventor
Xin Ning
Tong Sun
Jacek Dutkiewicz
Jian Qin
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 PE12597A1 publication Critical patent/PE12597A1/es

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

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Hematology (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Molecular Biology (AREA)
  • Dispersion Chemistry (AREA)
  • Biochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Cosmetics (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Paper (AREA)

Abstract

EL PROCESO PARA PREPARAR UNA SAL DE QUITOSAN COMPRENDE LOS SIGUIENTES PASOS: A) PREPARAR UNA MEZCLA COMPUESTA POR UN QUITOSAN INSOLUBLE AL AGUA EN LA QUE EL QUITOSAN TIENE UN GRADO PROMEDIO DE ACETILACION DE ENTRE 0 Y ALREDEDOR DE 0,5, AGUA Y UN ACIDO ELEGIDO DEL GRUPO COMPUESTO DE ACIDO HIDROCLORICO, ACIDO FORMICO, ACIDO ACETICO, ACIDO PROPIONICO, Y MEZCLAS DE LOS MISMOS; Y EN EL QUE LA MEZCLA TIENE UN pH DE EQUILIBRIO DE ENTRE ALREDEDOR DE 2 Y ALREDEDOR DE 6,5; Y EN EL QUE LA MEZCLA SE PREPARA BAJO CONDICIONES EFECTIVAS PARA FORMAR UNA SAL DE QUITOSAN SOLUBLE EN AGUA; B) RECUPERACION DE LA SAL DE QUITOSAN SOLUBLE EN AGUA DE LA MEZCLA; Y C) TRATAMIENTO DE DICHA SAL DE QUITOSAN SOLUBLE EN AGUA RECUPERADA, A UNA TEMPERATURA Y LAPSO EFECTIVOS PARA HACER A DICHA SAL DE QUITOSAN DILATABLE E INSOLUBLE EN AGUA, QUE EXHIBE UN VALOR INICIAL DE ABSORCION BAJO CARGA DE POR LO MENOS 17g POR g Y RETENGA POR LO MENOS ALREDEDOR DEL 70% DEL VALOR INICIAL DE ABSORCION BAJO CARGA DESPUES DE ANEJARSE DURANTE 20 DIAS, APROXIMADAMENTE A ALREDEDOR DE 24�C Y A UNA HUMEDAD RELATIVA DE ALREDEDOR DEL 100%. SE USAN EN PRODUCTOS ABSORBENTES COMO PANALES, PRODUCTOS DE INCONTINENCIA PARA ADULTOS Y PRODUCTOS SANITARIOS FEMENINOS
PE1995287591A 1994-12-22 1995-12-20 Sales de quitosan con mejores propiedades absorbentes y proceso para su preparacion PE12597A1 (es)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
PE12597A1 true PE12597A1 (es) 1997-04-30

Family

ID=23425957

Family Applications (1)

Application Number Title Priority Date Filing Date
PE1995287591A PE12597A1 (es) 1994-12-22 1995-12-20 Sales de quitosan con mejores propiedades absorbentes y proceso para su preparacion

Country Status (21)

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

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DE4318094B4 (de) * 1993-06-01 2004-03-04 Stockhausen Gmbh & Co. Kg Superabsorbentien, Verfahren zu ihrer Herstellung sowie ihre Verwendung

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ZA9510740B (en) 1996-06-20
SV1995000091A (es) 1996-07-25
UY24123A1 (es) 1996-06-11
AU689692B2 (en) 1998-04-02
DE69527370T2 (de) 2002-12-12
JPH10511720A (ja) 1998-11-10
FR2728575A1 (fr) 1996-06-28
MY113109A (en) 2001-11-30
AU4516796A (en) 1996-07-19
WO1996020015A2 (en) 1996-07-04
AR000398A1 (es) 1997-06-18
EG21032A (en) 2000-09-30
US5599916A (en) 1997-02-04
WO1996020015A3 (en) 1996-09-06
FR2728575B1 (fr) 1997-06-06
KR987000880A (en) 1998-04-30
EP0799247A2 (en) 1997-10-08
MX212300B (es) 2002-12-19
TW323286B (es) 1997-12-21
MX9704660A (es) 2000-04-30
GB2296250B (en) 1997-09-10
GB2296250A (en) 1996-06-26
GB9526240D0 (en) 1996-02-21
KR100412190B1 (ko) 2004-04-29
EP0799247B1 (en) 2002-07-10
CA2208892A1 (en) 1996-07-04
DE69527370D1 (de) 2002-08-14
TR199501616A2 (tr) 1996-07-21
PH11995051943B1 (en) 1999-07-05

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