PREPARING FAST SUPERABSORBENTS WITH ENHANCED ELASTIC BEHAVIOR

Present invention deals with a method for preparing water-absorbing polymers, so called superabsorbents. The invention is based on the finding that extruding hydrogel through a hole plate (13) obeying a complex design rule diminishes negative influence of thixotropy and increases the absorption spee...

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Bibliographische Detailangaben
Hauptverfasser:	MESCHER, Axel, GARTZ, Dominik, SMITH, Scott, PFAHLER, Axel, SCHMIDT, Diedrich, LOICK, Christoph, DIRKS, Martin
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR GENERAL PROCESSES OF COMPOUNDING HUMAN NECESSITIES HYGIENE MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	Present invention deals with a method for preparing water-absorbing polymers, so called superabsorbents. The invention is based on the finding that extruding hydrogel through a hole plate (13) obeying a complex design rule diminishes negative influence of thixotropy and increases the absorption speed of the superabsorbent made from the hydrogel. La présente invention concerne un procédé de préparation de polymères absorbant l'eau, appelés superabsorbants. L'invention est basée sur la découverte selon laquelle l'extrusion d'un hydrogel à travers une plaque perforée (13) obéissant à une règle de conception complexe diminue l'influence négative de la thixotropie et augmente la vitesse d'absorption du superabsorbant fabriqué à partir de l'hydrogel.