Multilayer cation exchange membrane

Details Multilayer cation exchange membrane Multilayer cation exchange membrane

1985-02-22

1986-08-05

Ives, P. C.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428421, 428422, 204252, 156228, 156DIG73, B32B 2700, C25B 146, C25B 1308

Patent

active

046043233

ABSTRACT:
A cation exchange membrane is disclosed comprising fluorinated polymer layers which include, in order, a layer with sulfonic exchange groups, a layer with carboxylic exchange groups, and a thinner layer with carboxylic exchange groups at a greater exchange capacity than the other carboxylic layer.

REFERENCES:
patent: 3692569 (1972-09-01), Grot
patent: 4259226 (1981-03-01), Sahara et al.
patent: 4329434 (1982-05-01), Kimoto et al.
patent: 4348310 (1982-09-01), Silva et al.
patent: 4433082 (1984-02-01), Grot

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