Production of porous diaphragm for electrolytic cell

Details Production of porous diaphragm for electrolytic cell Production of porous diaphragm for electrolytic cell

1981-05-19

1983-02-01

Newsome, John H.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 36, 427 44, B05D 306

Patent

active

043715648

ABSTRACT:
A process for the production of a porous diaphragm suitable for use in an electrolytic cell, particularly a chlor-alkali cell, characterized in that the process comprises irradiating a porous shaped article of an organic polymeric material, for example, a sheet of a fluoropolymer, with high energy radiation, the irradiation being effected in the presence of, or the irradiated shaped article being subsequently contacted with, a reactant selected from ammonia, carbon monoxide and phosgene, and the sheet preferably being subsequently contacted with an aqueous alkaline solution.

REFERENCES:
patent: 3666693 (1972-05-01), Chapiro et al.
patent: 3944709 (1976-03-01), Levy
patent: 4113922 (1978-09-01), D'Agostino et al.
patent: 4189369 (1980-02-01), Fang
Chem. Abstracts, vol. 83, 123307t, 1975.

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