C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
204/201, 204/202
C08J 3/00 (2006.01) C08F 8/06 (2006.01) C08F 14/18 (2006.01) C08J 5/22 (2006.01)
Patent
CA 1134993
ABSTRACT OF THE DISCLOSURE The invention is a process for preparing a fluorine-containing polymer having carboxyl groups, which comprises subjecting a fluorine- containing polymer having sulfonyl halide groups bonded to it to an oxidation reaction at a temperature of not more than 250°C. The fluorine-containing polymer produced are suitable materials for use in ion exchange membranes.
301800
Itoh Junichi
Nakahara Akihiko
Onoue Yasuharu
Sata Toshikatsu
Smart & Biggar
Tokuyama Soda Kabushiki Kaisha
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