Modified superabsorbent polymer based on polyacrylonitrile emulsions

A process for modifying superabsorbent polymers is disclosed. The surface of a polymer containing hydrolyzed polyacrylonitrile in the form of particulates, is modified by crosslinking in a water/alcohol reaction mixture and in the presence of silica. The resulting product features improved absorbenc...

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Hauptverfasser: KORTE SIEGFRIED, MEYER ROLF-VOLKER, SCHAPOWALOV SERGEJ, SACKMANN G NTER
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creator KORTE SIEGFRIED
MEYER ROLF-VOLKER
SCHAPOWALOV SERGEJ
SACKMANN G NTER
description A process for modifying superabsorbent polymers is disclosed. The surface of a polymer containing hydrolyzed polyacrylonitrile in the form of particulates, is modified by crosslinking in a water/alcohol reaction mixture and in the presence of silica. The resulting product features improved absorbency under load and lesser degree of gel blocking.
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subjects ADHESIVES
BANDAGES, DRESSINGS OR ABSORBENT PADS
BASIC ELECTRIC ELEMENTS
CABLES
CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOSITIONS BASED THEREON
CONDUCTORS
DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS
DISINFECTION, STERILISATION, OR DEODORISATION OF AIR
DYES
ELECTRICITY
FILTERS IMPLANTABLE INTO BLOOD VESSELS
FIRST-AID KITS
FOMENTATION
HUMAN NECESSITIES
HYGIENE
INSULATORS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES
PAINTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
POLISHES
PROSTHESES
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
THEIR PREPARATION OR CHEMICAL WORKING-UP
THEIR RELEVANT APPARATUS
TRANSPORTING
TREATMENT OR PROTECTION OF EYES OR EARS
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
title Modified superabsorbent polymer based on polyacrylonitrile emulsions
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