Process for producing cation exchange membrane by treatment of f

Details Process for producing cation exchange membrane by treatment of f Process for producing cation exchange membrane by treatment of f

1978-07-31

1979-05-15

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

260884, 528205, 20415915, 521 27, C25B 146, C08F 830

Patent

active

041549090

ABSTRACT:
A cation exchange membrane is produced by treating a membrane of a fluorinated polymer having sulfonyl halide group on side chains with a mixture of 1 a reaction product of an amine with a halogenated monomer and 2 a vinyl monomer and/or diene monomer each of which has carboxylic acid group, phenolic hydroxyl group, sulfonic acid group and/or a functional group being convertible into carboxylic acid group, phenolic hydroxyl group or sulfonic acid group.

REFERENCES:
patent: 3257334 (1966-06-01), Chen et al.
patent: 3647086 (1972-03-01), Mizatoni et al.
patent: 3969285 (1976-07-01), Grot

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