Title:
【発明の名称】PVA系ゲル成形物の製造方法
Document Type and Number:
Japanese Patent JPH05271425
Kind Code:
A
Abstract:
PURPOSE:To obtain the title molding having high strengths, water resistance and chemical resistance and a high affinity for a biocatalyst by bringing a mixed aqueous solution of PVA and a water-soluble polysaccharide into contact with a liquid containing borate ions and cations to form particles and treating the particles for insolubilizing the PVA. CONSTITUTION:A spherical polyvinyl alcohol gel molding is produced by bringing an aqueous solution containing polyvinyl alcohol and a water-soluble polysaccharide capable of gelling upon contact with cations into contact with a liquid containing borate ions and cations to form spherical particles and treating the particles for insolubilizing the PVA. According to this process, the spherical polyvinyl alcohol gel molding can be easily obtained, has a high affinity for a biocatalyst, and therefore can be used as a bioreactor, a carrier for wastewater treatment, a water retentive, a low-temperature insulation, etc.
Inventors:
Hiroaki Fujii
Toshihiro Hamada
Toshihiro Hamada
Application Number:
JP10166592A
Publication Date:
October 19, 1993
Filing Date:
March 27, 1992
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
C08J3/14; C08J3/21; C08J5/02; C08K3/34; C08K3/38; C08L5/00; C08L29/02; C08L29/04; (IPC1-7): C08J3/14; C08J3/21; C08J5/02; C08L5/00