PRODUCTION OF SPONGE-LIKE MOLDING

PURPOSE:To produce a sponge-like molding having good water revertibility and touch, by reacting an aldehyde with an acidic aqueous dispersion of a specified highly water-absorbing PVA resin. CONSTITUTION:A dispersion is prepared by dispersing a highly water-absorbing PVA resin, water absorption >...

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Bibliographische Detailangaben
1. Verfasser:	OONISHI YOSHIZOU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To produce a sponge-like molding having good water revertibility and touch, by reacting an aldehyde with an acidic aqueous dispersion of a specified highly water-absorbing PVA resin. CONSTITUTION:A dispersion is prepared by dispersing a highly water-absorbing PVA resin, water absorption >=50 times, obtained by subjecting a saponificate of a copolymer of an unsaturated carboxylic acid or its derivative (e.g., acrylic acid) and vinyl acetate to an insolubilization treatment such as heat treatment or acid treatment, in an aqueous acid solution, pH