DE69823179T2 - Superabsorbierende polymere mit verbesserter verarbeitbarkeit - Google Patents

Superabsorbierende polymere mit verbesserter verarbeitbarkeit Download PDF

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Publication number
DE69823179T2
DE69823179T2 DE69823179T DE69823179T DE69823179T2 DE 69823179 T2 DE69823179 T2 DE 69823179T2 DE 69823179 T DE69823179 T DE 69823179T DE 69823179 T DE69823179 T DE 69823179T DE 69823179 T2 DE69823179 T2 DE 69823179T2
Authority
DE
Germany
Prior art keywords
improved processability
absorbing polymers
super absorbing
super
polymers
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
DE69823179T
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German (de)
English (en)
Other versions
DE69823179D1 (de
Inventor
A Gartner
L Staples
Michael Fialkowski
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.)
Evonik Operations GmbH
Original Assignee
Dow Global Technologies LLC
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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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21932281&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69823179(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dow Global Technologies LLC filed Critical Dow Global Technologies LLC
Application granted granted Critical
Publication of DE69823179D1 publication Critical patent/DE69823179D1/de
Publication of DE69823179T2 publication Critical patent/DE69823179T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C08J3/12—Powdering or granulating
    • C08J3/124—Treatment for improving the free-flowing characteristics
    • 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
    • C08J3/12—Powdering or granulating
    • 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
    • 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
    • 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

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Dispersion Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
DE69823179T 1997-04-29 1998-03-05 Superabsorbierende polymere mit verbesserter verarbeitbarkeit Expired - Lifetime DE69823179T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4441797P 1997-04-29 1997-04-29
PCT/US1998/007963 WO1998049221A1 (en) 1997-04-29 1998-03-05 Superabsorbent polymers having improved processability

Publications (2)

Publication Number Publication Date
DE69823179D1 DE69823179D1 (de) 2004-05-19
DE69823179T2 true DE69823179T2 (de) 2005-04-21

Family

ID=21932281

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69823179T Expired - Lifetime DE69823179T2 (de) 1997-04-29 1998-03-05 Superabsorbierende polymere mit verbesserter verarbeitbarkeit

Country Status (8)

Country Link
US (1) US6323252B1 (https=)
EP (1) EP0979250B1 (https=)
JP (1) JP4271736B2 (https=)
KR (1) KR100639053B1 (https=)
CN (1) CN1122067C (https=)
DE (1) DE69823179T2 (https=)
TW (1) TW491874B (https=)
WO (1) WO1998049221A1 (https=)

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DE19909838A1 (de) * 1999-03-05 2000-09-07 Stockhausen Chem Fab Gmbh Pulverförmige, vernetzte, wässrige Flüssigkeiten sowie Blut absorbierende Polymere, Verfahren zu ihrer Herstellung und ihre Verwendung
US6514615B1 (en) * 1999-06-29 2003-02-04 Stockhausen Gmbh & Co. Kg Superabsorbent polymers having delayed water absorption characteristics
US6579958B2 (en) * 1999-12-07 2003-06-17 The Dow Chemical Company Superabsorbent polymers having a slow rate of absorption
US6433058B1 (en) 1999-12-07 2002-08-13 Dow Global Technologies Inc. Superabsorbent polymers having a slow rate of absorption
TWI278480B (en) † 1999-12-15 2007-04-11 Nippon Catalytic Chem Ind Water-absorbent resin composition
EP1244474A1 (en) * 1999-12-23 2002-10-02 The Dow Chemical Company High permeability, low absorption capacity polymers
DE50102334D1 (de) 2000-03-31 2004-06-24 Stockhausen Chem Fab Gmbh Pulverförmige, an der oberfläche vernetzte polymerisate
DE10016041A1 (de) * 2000-03-31 2001-10-04 Stockhausen Chem Fab Gmbh Pulverförmige an der Oberfläche vernetzte Polymerisate
DE10043710B4 (de) 2000-09-04 2015-01-15 Evonik Degussa Gmbh Verwendung pulverförmiger an der Oberfläche nachvernetzter Polymerisate und Hygieneartikel
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Also Published As

Publication number Publication date
JP2001523287A (ja) 2001-11-20
JP4271736B2 (ja) 2009-06-03
EP0979250B1 (en) 2004-04-14
KR20010020403A (ko) 2001-03-15
CN1254354A (zh) 2000-05-24
US6323252B1 (en) 2001-11-27
WO1998049221A1 (en) 1998-11-05
DE69823179D1 (de) 2004-05-19
TW491874B (en) 2002-06-21
KR100639053B1 (ko) 2006-10-27
CN1122067C (zh) 2003-09-24
EP0979250A1 (en) 2000-02-16

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