Shaped article made of porous hydrogel, method for producing same and use thereof

A porous water-containing gel molded article (A) containing polyvinyl alcohol that has been acetalized by a monoaldehyde or a dialdehyde, the molded article (A) being characterized in that: the degree of acetalization is 15-80 mol% in the case of acetalization by a monoaldehyde, or the degree of ace...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SAEGUSA, YUSUKE, KATO, TOSHINORI, YOSHIHARA, MOTOTSUGU, OHATA, TAKASHI, BABA, MASAHIRO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AGRICULTURE ANIMAL HUSBANDRY BEER BIOCHEMISTRY CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COMPOSITIONS THEREOF CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED CULTURE MEDIA ENZYMOLOGY FISHING FORESTRY GENERAL PROCESSES OF COMPOUNDING HORTICULTURE HUMAN NECESSITIES HUNTING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING TRAPPING VINEGAR WATERING WINE WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A porous water-containing gel molded article (A) containing polyvinyl alcohol that has been acetalized by a monoaldehyde or a dialdehyde, the molded article (A) being characterized in that: the degree of acetalization is 15-80 mol% in the case of acetalization by a monoaldehyde, or the degree of acetalization is 0.1-15 mol% in the case of acetalization by a dialdehyde; the polyvinyl alchohol contains monomer units including a carboxylic acid salt; the monomer unit content for said monomer units is 1-7 mol%; the molded article (A) has a series of holes; and the specific surface area is 1-15 m2/g. There is thereby provided a porous water-containing gel molded article that has excellent volume restoration properties when immersed in water after having been reduced in volume through compression, drying, etc., and stored.