POROUS WATER-CONTAINING GEL MOLDED ARTICLE, METHOD FOR PRODUCING SAME, AND USE OF SAME

There is provided a shaped article made of porous hydrogel that contains a polyvinyl alcohol acetalized with a dialdehyde, wherein the shaped article after freeze-drying has a pore size of 0.1 to 50 µ m. Preferably, the shaped article made of porous hydrogel further contains a water-soluble polysacc...

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Bibliographische Detailangaben
Hauptverfasser:	ISHIODORI, ARATA, YOSHIHARA, MOTOTSUGU, OKA, TATSUYA
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 METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE WORKING-UP
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Beschreibung
Zusammenfassung:	There is provided a shaped article made of porous hydrogel that contains a polyvinyl alcohol acetalized with a dialdehyde, wherein the shaped article after freeze-drying has a pore size of 0.1 to 50 µ m. Preferably, the shaped article made of porous hydrogel further contains a water-soluble polysaccharide. Also preferably, an acetalization degree of the polyvinyl alcohol is 1 to 50 mol%. Also preferably, the shaped article made of porous hydrogel is in the form of particles with a sphere-equivalent diameter of 1 to 20 mm. Such a shaped article made of porous hydrogel exhibits high strength and good survivability of microorganisms.