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1. WO2010004020 - METHOD FOR THE SURFACE POST-CROSSLINKING OF WATER ABSORBING POLYMER PARTICLES

Publication Number WO/2010/004020
Publication Date 14.01.2010
International Application No. PCT/EP2009/058798
International Filing Date 10.07.2009
IPC
A61L 15/22 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
15Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
22containing macromolecular materials
A61L 15/60 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
15Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
42Use of materials characterised by their function or physical properties
60Liquid-swellable gel-forming materials, e.g. super-absorbents
C08J 3/24 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
3Processes of treating or compounding macromolecular substances
24Crosslinking, e.g. vulcanising, of macromolecules
C08K 3/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3Use of inorganic substances as compounding ingredients
C08L 101/14 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
101Compositions of unspecified macromolecular compounds
12characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
14the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels
CPC
A61L 15/60
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
15Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
42Use of materials characterised by their function or physical properties
60Liquid-swellable gel-forming materials, e.g. super-absorbents
C08J 2333/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2333Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
02Homopolymers or copolymers of acids; Metal or ammonium salts thereof
C08J 3/245
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
3Processes of treating or compounding macromolecular substances
24Crosslinking, e.g. vulcanising, of macromolecules
245Differential crosslinking of one polymer with one crosslinking type, e.g. surface crosslinking
Applicants
  • BASF SE [DE]/[DE] (AllExceptUS)
  • FUNK, Rüdiger [DE]/[DE] (UsOnly)
  • HEIDE, Wilfried [DE]/[DE] (UsOnly)
  • STUEVEN, Uwe [DE]/[DE] (UsOnly)
Inventors
  • FUNK, Rüdiger
  • HEIDE, Wilfried
  • STUEVEN, Uwe
Common Representative
  • BASF SE
Priority Data
08160175.911.07.2008EP
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR OBERFLÄCHENNACHVERNETZUNG WASSERABSORBIERENDER POLYMERPARTIKEL
(EN) METHOD FOR THE SURFACE POST-CROSSLINKING OF WATER ABSORBING POLYMER PARTICLES
(FR) PROCÉDÉ DE POST-RÉTICULATION DE SURFACE DE PARTICULES DE POLYMÈRE HYDROPHILES
Abstract
(DE)
Verfahren zur Herstellung wasserabsorbierender Polymerpartikel,wobei die wasserabsorbierenden Polymerpartikel mit ungesättigten Fettsäuren oder deren Derivaten oberflächennachvernetzt werden.
(EN)
The invention relates to a method for the production of water absorbing polymer particles, wherein the water absorbing polymer particles are surface post-crosslinked using unsaturated fatty acids or the derivatives thereof.
(FR)
L’invention concerne un procédé pour produire des particules de polymère hydrophiles, les particules de polymère hydrophiles étant post-réticulées en surface avec des acides gras insaturés ou leurs dérivés.
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