US 12,410,290 B2
Monovalent anion selective ion exchange membrane
Young Woo Choi, Jeollabuk-do (KR)
Assigned to Toray Advanced Materials Korea Inc., Gyeongsangbuk-do (KR)
Appl. No. 17/635,313
Filed by Toray Advanced Materials Korea Inc., Gyeongsangbuk-do (KR)
PCT Filed Aug. 18, 2020, PCT No. PCT/KR2020/010951
§ 371(c)(1), (2) Date Feb. 14, 2022,
PCT Pub. No. WO2021/034068, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 10-2019-0100083 (KR), filed on Aug. 16, 2019.
Prior Publication US 2022/0298318 A1, Sep. 22, 2022
Int. Cl. C08J 5/22 (2006.01); B01J 41/09 (2017.01); B01J 41/13 (2017.01)
CPC C08J 5/2287 (2013.01) [B01J 41/09 (2017.01); B01J 41/13 (2017.01)] 12 Claims
OG exemplary drawing
 
1. A monovalent anion selective ion exchange membrane, comprising:
a polymer support having a porous structure; and
an ion exchange polymer electrolyte impregnated in the porous polymer support,
wherein the ion exchange polymer electrolyte includes an anion exchange polymer electrolyte and a cation exchange polymer electrolyte,
a central portion of the porous polymer support is impregnated with the anion exchange polymer electrolyte,
a surface portion of the porous polymer support is impregnated with a cation exchange polymer electrolyte, and
the porous polymer support has a pore volume of 40% to 50%, a pore size of 0.07 μm to 0.1 μm, and a thickness of 8 μm to 30 μm.