METHOD FOR PRODUCING WATER ABSORBENT RESIN

[Object] To provide a method for producing a water-absorbent resin in powder form or particle form, which has excellent physical properties such as water absorption performance and the like, at high productivity. [Solution] A method for producing a water-absorbent resin includes: a polymerization st...

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Bibliographische Detailangaben
Hauptverfasser:	FUJINO Shin-ichi, SHUTO Tokio, IMURA Motohiro, HONDA Koji, WAKABAYASHI Ryota
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON 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 PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	[Object] To provide a method for producing a water-absorbent resin in powder form or particle form, which has excellent physical properties such as water absorption performance and the like, at high productivity. [Solution] A method for producing a water-absorbent resin includes: a polymerization step of polymerizing a monomer, which is a raw material of the water-absorbent resin, to obtain a hydrous gel crosslinked polymer dispersed in an organic solvent; and a separation step of separating the organic solvent and the hydrous gel crosslinked polymer. The separation step includes transfer, compression, and discharge of the hydrous gel crosslinked polymer.