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DE69534257D1 - Wasserabsorptionsmittel, Verfahren zu seiner Herstellung und wasserabsorbierende Zusammensetzung - Google Patents

Wasserabsorptionsmittel, Verfahren zu seiner Herstellung und wasserabsorbierende Zusammensetzung

Info

Publication number
DE69534257D1
DE69534257D1 DE69534257T DE69534257T DE69534257D1 DE 69534257 D1 DE69534257 D1 DE 69534257D1 DE 69534257 T DE69534257 T DE 69534257T DE 69534257 T DE69534257 T DE 69534257T DE 69534257 D1 DE69534257 D1 DE 69534257D1
Authority
DE
Germany
Prior art keywords
water
preparation
absorbing composition
absorbent
water absorbent
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.)
Expired - Lifetime
Application number
DE69534257T
Other languages
English (en)
Other versions
DE69534257T3 (de
DE69534257T2 (de
Inventor
Yorimichi Dairoku
Kinya Nagasuna
Yoshihiko Masuda
Nobuyuki Harada
Yoshihiro Motono
Kunihiko Ishizaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Shokubai Co Ltd
Original Assignee
Nippon Shokubai Co Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26357208&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69534257(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Shokubai Co Ltd filed Critical Nippon Shokubai Co Ltd
Publication of DE69534257D1 publication Critical patent/DE69534257D1/de
Application granted granted Critical
Publication of DE69534257T2 publication Critical patent/DE69534257T2/de
Anticipated expiration legal-status Critical
Publication of DE69534257T3 publication Critical patent/DE69534257T3/de
Expired - Lifetime legal-status Critical Current

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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • C08J3/245—Differential crosslinking of one polymer with one crosslinking type, e.g. surface crosslinking
    • 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
    • A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; 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
    • A61L15/42—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
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/04—Acids; Metal salts or ammonium salts thereof
    • C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/14—Water soluble or water swellable polymers, e.g. aqueous gels

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Public Health (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Hematology (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Epoxy Resins (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
DE69534257.6T 1994-02-17 1995-02-17 Wasserabsorptionsmittel, Verfahren zu seiner Herstellung und wasserabsorbierende Zusammensetzung Expired - Lifetime DE69534257T3 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2029594 1994-02-17
JP2029594 1994-02-17
JP5036594 1994-03-22
JP5036594 1994-03-22
EP95301038.6A EP0668080B2 (de) 1994-02-17 1995-02-17 Wasserabsorptionsmittel, Verfahren zu seiner Herstellung und wasserabsorbierende Zusammensetzung

Publications (3)

Publication Number Publication Date
DE69534257D1 true DE69534257D1 (de) 2005-07-14
DE69534257T2 DE69534257T2 (de) 2006-03-23
DE69534257T3 DE69534257T3 (de) 2016-03-03

Family

ID=26357208

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69534257.6T Expired - Lifetime DE69534257T3 (de) 1994-02-17 1995-02-17 Wasserabsorptionsmittel, Verfahren zu seiner Herstellung und wasserabsorbierende Zusammensetzung
DE69536109T Expired - Lifetime DE69536109D1 (de) 1994-02-17 1995-02-17 Wasserabsorptionsmittel, Verfahren zu seiner Herstellung und wasserabsorbierende Zusammensetzung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69536109T Expired - Lifetime DE69536109D1 (de) 1994-02-17 1995-02-17 Wasserabsorptionsmittel, Verfahren zu seiner Herstellung und wasserabsorbierende Zusammensetzung

Country Status (5)

Country Link
US (4) US5610208A (de)
EP (2) EP0668080B2 (de)
KR (1) KR100374127B1 (de)
DE (2) DE69534257T3 (de)
TW (1) TW305857B (de)

Families Citing this family (143)

* Cited by examiner, † Cited by third party
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US20020013394A1 (en) 2002-01-31
EP1570869B1 (de) 2010-09-29
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US6992144B2 (en) 2006-01-31
US20060025536A1 (en) 2006-02-02
KR950031004A (ko) 1995-12-18
DE69534257T2 (de) 2006-03-23
EP0668080A2 (de) 1995-08-23
US7250459B2 (en) 2007-07-31
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US5610208A (en) 1997-03-11

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