Patent ID: 9266069
Filing Date: 2016-02-23
CPC Classification: B01D,C08J,Y02A

Claim Text:
1. A ion exchange membrane, comprising : an ion-exchange layer comprising [at least one selected from the group consisting of] a cationic and an anionic polymer; and a supporting layer, wherein the ion-exchange layer is formed on the supporting layer by printing; wherein the cationic polymer comprises a block or graft copolymer comprising a polymer component formed by polymerization of a cationic monomer and a polyvinyl alcohol component, and the anionic polymer is a block or graft copolymer comprising a polymer component formed by copolymerization of an anionic monomer and a polyvinyl alcohol component; and wherein the ion exchange layer is a charged-mosaic layer comprising a first domain of a cationic polymer and a second domain of the anionic polymer.