Polymeric membrane having maleic anhydride residues
AssigneeAgency of Industrial Science and Technology
InventorTomohiko Yamaguchi
Life of this patent
Estimating the term…
Abstract
A polymeric membrane having maleic anhydride residues which comprises a blend of a maleic anhydride copolymer and a support polymer, said blend being partially cross-linked with a bifunctional cross-linking reagent. When hydrolyzed, this membrane turns into an ion exchange membrane or a membrane on which an enzyme is immobilized.
Claims8
A polymeric membrane having maleic anhydride residues which comprise a blend of (1) a copolymer of maleic anhydride and an olefin or vinyl monomer and (2) a polyalkyl methacrylate, said blend being partially cross-linked with a bifunctional cross-linking reagent and being prepared by dissolving and mixing said copolymer and polyalkyl methacrylate in an organic solvent together with said bifunctional cross-linking reagent and thereafter removing the organic solvent.
Dependencies are inferred from the claim text.