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Title:
CATION EXCHANGE MEMBRANE FOR PRODUCING SALT AND METHOD FOR MANUFACTURING THE MEMBRANE
Document Type and Number:
Japanese Patent JP2009096821
Kind Code:
A
Abstract:

To provide a cation exchange membrane, which is used for producing salt and the concentrating performance and mechanical strength of which are improved in comparison with the cation exchange membranes used up to now without increasing electric resistance.

The cation exchange membrane for producing salt is manufactured by irradiating an ethylene-tetrafluoroethylene copolymer film with ionizing radiation to generate radicals in an ethylene-tetrafluoroethylene copolymer and performing graft polymerization in a polymerizable mixture comprising a polymerizable monomer having a functional group, into which a cation exchanging group can be introduced, and a cross-linking monomer.


Inventors:
NAGATANI TAKESHI
NISHII HIROSHI
YOSHIKAWA NAOTO
Application Number:
JP2007266772A
Publication Date:
May 07, 2009
Filing Date:
October 12, 2007
Export Citation:
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Assignee:
SOLT INDUSTRY CT OF JAPAN
International Classes:
C08J5/22; C08F259/08
Domestic Patent References:
JP2003012835A2003-01-15
JPS62131038A1987-06-13
JPS61276828A1986-12-06
JP2004059752A2004-02-26
JPS6055033A1985-03-29
JPS60110711A1985-06-17
JPH11300171A1999-11-02
JP2003012835A2003-01-15
JPS62131038A1987-06-13
JPS61276828A1986-12-06
Attorney, Agent or Firm:
Shohei Oguri
Hironori Honda
Toshimitsu Ichikawa
Kiyozumi Yazawa