Method of bonding cation exchange membrane of fluorinated...

Details Method of bonding cation exchange membrane of fluorinated... Method of bonding cation exchange membrane of fluorinated...

C - Chemistry, Metallurgy

25

B

18/13, 154/71.04

C25B 13/08 (2006.01) B05D 5/00 (2006.01) B32B 7/04 (2006.01) B32B 27/30 (2006.01) C08J 5/12 (2006.01) C08J 5/20 (2006.01) C08J 5/22 (2006.01) C09J 5/00 (2006.01) C25B 1/16 (2006.01) C25B 1/26 (2006.01) C25B 1/34 (2006.01) C25B 1/46 (2006.01) C25B 13/00 (2006.01)

Patent

CA 1101622

ABSTRACT OF THE DISCLOSURE A method of bonding a cation exchange membrane which comprises melt-bonding a part of the cation exchange membrane of a fluorinated copolymer in the form having ion-exchange groups of -cooy wherein Y represents hydrogen atom or a C1 - C20 alkyl group, the cation exchange membrane being one which is in the form having ion-exchange groups of Image wherein X represents an alkali metal, an alkaline earth metal or -NHR1R2R3 and R1 to R3 respectively represent hydrogen atom or a lower alkyl group and m is a valence of X. The method makes melt-bond of the membrane possible without decomposition of the copolymer.

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