DE69228019T2 - Verfahren zum Recycling von wasserabsorbierendem feinkörnigem Gut in eine Polymerisationsvorrichtung - Google Patents

Verfahren zum Recycling von wasserabsorbierendem feinkörnigem Gut in eine Polymerisationsvorrichtung

Info

Publication number
DE69228019T2
DE69228019T2 DE69228019T DE69228019T DE69228019T2 DE 69228019 T2 DE69228019 T2 DE 69228019T2 DE 69228019 T DE69228019 T DE 69228019T DE 69228019 T DE69228019 T DE 69228019T DE 69228019 T2 DE69228019 T2 DE 69228019T2
Authority
DE
Germany
Prior art keywords
fines
aqueous fluid
fluid absorbent
absorbent polymer
polymer
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
DE69228019T
Other languages
English (en)
Other versions
DE69228019D1 (de
DE69228019T3 (de
Inventor
Andrew T Graham
Herbert Gartner
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 Chemical 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24816532&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69228019(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of DE69228019D1 publication Critical patent/DE69228019D1/de
Publication of DE69228019T2 publication Critical patent/DE69228019T2/de
Application granted granted Critical
Publication of DE69228019T3 publication Critical patent/DE69228019T3/de
Anticipated expiration legal-status Critical
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
    • 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
    • C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
DE69228019T 1991-05-16 1992-05-14 Verfahren zum Recycling von wasserabsorbierendem feinkörnigem Gut in eine Polymerisationsvorrichtung Expired - Lifetime DE69228019T3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US701232 1991-05-16
US07/701,232 US5342899A (en) 1991-05-16 1991-05-16 Process for recycling aqueous fluid absorbents fines to a polymerizer

Publications (3)

Publication Number Publication Date
DE69228019D1 DE69228019D1 (de) 1999-02-11
DE69228019T2 true DE69228019T2 (de) 1999-08-26
DE69228019T3 DE69228019T3 (de) 2007-10-11

Family

ID=24816532

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69228019T Expired - Lifetime DE69228019T3 (de) 1991-05-16 1992-05-14 Verfahren zum Recycling von wasserabsorbierendem feinkörnigem Gut in eine Polymerisationsvorrichtung

Country Status (9)

Country Link
US (1) US5342899A (de)
EP (1) EP0513780B2 (de)
JP (1) JP3155006B2 (de)
KR (1) KR100231077B1 (de)
AT (1) ATE175217T1 (de)
CA (1) CA2068859A1 (de)
DE (1) DE69228019T3 (de)
MX (1) MX9202309A (de)
WO (1) WO1992020723A1 (de)

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Also Published As

Publication number Publication date
CA2068859A1 (en) 1992-11-17
US5342899A (en) 1994-08-30
DE69228019D1 (de) 1999-02-11
JPH06510551A (ja) 1994-11-24
EP0513780B2 (de) 2007-03-14
EP0513780B1 (de) 1998-12-30
JP3155006B2 (ja) 2001-04-09
WO1992020723A1 (en) 1992-11-26
DE69228019T3 (de) 2007-10-11
ATE175217T1 (de) 1999-01-15
MX9202309A (es) 1992-11-01
KR100231077B1 (ko) 1999-11-15
EP0513780A1 (de) 1992-11-19

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