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1. (WO2012108102) MICROPOROUS CRYSTALLINE POLYMER MEMBRANE, PRODUCTION METHOD THEREFOR AND FILTRATION FILTER

Pub. No.:    WO/2012/108102    International Application No.:    PCT/JP2011/079147
Publication Date: Aug 16, 2012 International Filing Date: Dec 16, 2011
IPC: B01D 71/82
B01D 69/12
B01D 71/36
C08J 9/40
Applicants: FUJIFILM Corporation
富士フイルム株式会社
ISHIZUKA, Kenichi
石塚 憲一
YAMAZAKI, Kazuki
山崎 一樹
Inventors: ISHIZUKA, Kenichi
石塚 憲一
YAMAZAKI, Kazuki
山崎 一樹
Title: MICROPOROUS CRYSTALLINE POLYMER MEMBRANE, PRODUCTION METHOD THEREFOR AND FILTRATION FILTER
Abstract:
[Problem] To provide: a microporous crystalline polymer membrane that has excellent water resistance and ion adsorption capacity, is highly hydrophilic, has a long filtration life, and an excellent permeation flow rate; a microporous crystalline polymer membrane production method capable of producing said microporous crystalline polymer membranes efficiently; and a filtration filter using said microporous crystalline polymer membrane. [Solution] A microporous crystalline polymer membrane with an asymmetric pore structure, wherein: at least a portion of the exposed surface of the microporous crystalline polymer membrane is covered with a radical polymer obtained by polymerizing a composition comprising a radical-polymerizable monomer; a functional compound comprising at least one of ion-exchanging groups or chelating groups has undergone an addition reaction with at least a portion of the radical polymer; and the radical-polymerizable monomer is at least one selected from acrylate, methacrylate, acrylamide and derivatives thereof.