PROCESS FOR PRODUCTION OF WATER-ABSORBING COMPOSITES

Disclosed is a method comprising bringing droplets of an aqueous solution of a polymerizable monomer into contact with a fibrous substrate with polymerizing the monomer to thereby fix a water-absorbing resin particle precursor to the fibrous substrate, then adding thereto an aqueous solution of a cr...

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Bibliographische Detailangaben
Hauptverfasser:	HIMORI, SHUNICHI, ITOH, KIICHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	Disclosed is a method comprising bringing droplets of an aqueous solution of a polymerizable monomer into contact with a fibrous substrate with polymerizing the monomer to thereby fix a water-absorbing resin particle precursor to the fibrous substrate, then adding thereto an aqueous solution of a crosslinking agent in such a manner that the temperature of the water-absorbing resin particle precursor is 60°C or lower after the addition, and heating the precursor composite in an atmosphere at 90°C or higher within 2 minutes after the addition to thereby crosslink the precursor. This method can provide a water-absorbing composite having asufficient water-absorbing capacity under pressure and an excellent water-holding capacity.