The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2018
Filed:
Dec. 26, 2012
Applicant:
Kuraray Co., Ltd., Kurashiki-shi, JP;
Inventors:
Assignee:
KURARAY CO., LTD., Kurashiki-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/00 (2006.01); C08J 9/28 (2006.01); C02F 3/10 (2006.01); C08K 3/20 (2006.01); C08J 3/075 (2006.01);
U.S. Cl.
CPC ...
C08J 9/28 (2013.01); C02F 3/104 (2013.01); C02F 3/108 (2013.01); C02F 3/109 (2013.01); C08J 3/075 (2013.01); C08K 3/20 (2013.01); C08J 2201/026 (2013.01); C08J 2201/0504 (2013.01); C08J 2205/022 (2013.01); C08J 2205/044 (2013.01); C08J 2329/04 (2013.01); C08J 2405/04 (2013.01); Y02W 10/15 (2015.05); Y10T 428/2982 (2015.01);
Abstract
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 μm. 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.