Cation exchange membrane with high equivalent weight component

Details Cation exchange membrane with high equivalent weight component Cation exchange membrane with high equivalent weight component

C - Chemistry, Metallurgy

25

B

204/202

C25B 13/04 (2006.01) B32B 27/12 (2006.01) C08J 5/22 (2006.01)

Patent

CA 1224184

TITLE Cation Exchange Membrane With High Equivalent Weight Components ABSTRACT OF THE DISCLOSURE A multilayer cation exchange membrane and a continuous process for the production of alkali metal hydroxide using such a membrane are disclosed. The membrane consists essentially of layers of (a) a fluori- nated polymer with pendant side chains containing carboxyl groups, (b) a fluorinated polymer having pendant side chains containing sulfonyl groups and having a higher equivalent weight than the polymer of (a) r and (c) a fluorinated polymer having pendant side chains containing sulfonyl groups and having an equiva- lent weight less than that of the polymer of (b),

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