Process for preparing bipolar membranes

Details Process for preparing bipolar membranes Process for preparing bipolar membranes

1985-09-09

1987-06-16

Gallagher, John J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156246, 156315, 427340, 521 27, B32B 3100

Patent

active

046734546

ABSTRACT:
An improved bipolar membrane, a precursor for said membrane and a process for preparing bipolar membranes and precursors are described. In the process a precursor is formed by laminating at least two polymeric layers at least one of which is non-ionic. After the formation of the precursor, the non-ionic layer or layers are chemically treated to form a stable bipolar membrane having high permselectivity and low potential drop. The novel bipolar membrane contains an interfacial layer having anionic and cationic domains.

REFERENCES:
patent: 3945927 (1976-03-01), Imai et al.
patent: 4116889 (1978-09-01), Chlanda et al.
patent: 4258900 (1981-03-01), Dege et al.

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