Membrane construction

Details Membrane construction Membrane construction

1981-03-09

1983-05-03

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204DIG13, 2105002, C25B 1302, C25B 1304

Patent

active

043819850

ABSTRACT:
An ion transfer membrane assembly, for electrochemical processes, is provided which includes a plurality of layers of capillary material and a structure for compressing the layers together to control the water permeability of the membrane. The membrane includes a plurality of layers of capillary material, each of the plurality of layers being formed from a corrosion-resistant relatively soft, film, such as a thermoplastic film, having surface manifestations formed on it, which manifestations define the capillaries. The surface manifestation may be formed by embossing, frosting, etching, etc. A plurality of layers of corrosion-resistant, springy, porous capillary material, such as a polyester non-woven web, may be interspersed with the capillary material film layers, and a plurality of layers of smooth-surfaced film may also be interspersed with the capillary material film layers.

REFERENCES:
patent: 3370713 (1968-02-01), Stevens
patent: 3563388 (1971-02-01), Briggs
patent: 3607706 (1971-09-01), Eisenmann
patent: 3648843 (1972-03-01), Pearson
patent: 4124458 (1978-11-01), Moeglich
patent: 4172774 (1979-10-01), Moeglich
patent: 4242193 (1980-12-01), Moeglich

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