Membrane assembly, electrochemical cell, and electrolysis proces

Details Membrane assembly, electrochemical cell, and electrolysis proces Membrane assembly, electrochemical cell, and electrolysis proces

1981-10-21

1984-12-25

Schofer, Joseph L.

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

Synthetic resins

Ion-exchange polymer or process of preparing

204296, 204252, 418422, B01J 4712, B32B 700

Patent

active

044904843

ABSTRACT:
A membrane assembly which comprises a layer of perfluorinated polymer which has carboxylate functional groups, a layer of perfluorinated polymer which has ion exchange functional groups, and a water-containing or water-soluble stratum which lies between these two layers and joins them together, is described. Such a multilayered composite membrane is more simply made than conventional multilayered membranes having adherent layers, and provides for easy recovery of the component parts thereof. The membrane assembly is useful for separating the compartments of an electrochemical cell, especially a chloralkali cell.

REFERENCES:
patent: 2730768 (1956-01-01), Clarke
patent: 3976549 (1976-08-01), Flavo
patent: 4151053 (1979-04-01), Seko et al.
patent: 4165248 (1979-08-01), Darlington et al.
patent: 4178218 (1979-12-01), Seko
patent: 4253900 (1981-03-01), Dege et al.
patent: 4331521 (1982-05-01), Chisholm et al.

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