Web-supported membrane

Details Web-supported membrane Web-supported membrane

1981-09-21

1983-08-16

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

204296, 210638, 428246, 428251, 428252, 428253, 428256, 428408, 428421, 428422, B32B 700

Patent

active

043991831

ABSTRACT:
A process and apparatus for continuously forming a reinforced membrane of fluorinated polymers containing sulfonyl and/or carboxyl groups in melt-fabricable form and, after hydrolysis, the corresponding membrane in ion exchange form. The membrane thus formed has exceptional uniformity, and this membrane so made, when used as the membrane which separates the compartments of a chloralkali cell, offers the advantages of low operating voltage, low power consumption and high current efficiency, and a long useful life without rupture.

REFERENCES:
patent: 3770567 (1973-11-01), Grot
patent: 3849243 (1974-11-01), Grot
patent: 3933552 (1976-01-01), Shumaker
patent: 3935096 (1976-01-01), Eng et al.
patent: 4021327 (1977-05-01), Grot
patent: 4040888 (1974-08-01), Soska et al.

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