C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
18/13, 204/202
C25B 13/00 (2006.01)
Patent
CA 1125702
ABSTRACT OF THE DISCLOSURE The present invention provides a fluorinated polymer cation exchange membrane for electrolysis which comprises a cation exchange resin of a perfluorocarbon polymer having car- boxylic acid groups or functional groups which can be converted to carboxylic acid groups said resin having 0.5 to 4.0 wt.% fibrils of polytetrafluoroethylene incorporated therein, wherein said fibrils are formed by applying sheer stress to particles of poly- tetrafluoroethylene. The present invention provides a cation exchange membrane composed of a fluorinated polymer for use in electrolysis which has excellent mechanical properties being durable against shocks caused in the electrolysis without dis- advantageously affecting the electric characteristics, and which can be prepared at low cost.
317334
Asawa Tatsuro
Gunjima Tomoki
Ukihashi Hiroshi
Asahi Glass Company Ltd.
Marks & Clerk
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