Oxygen separating member and process for producing the same

Details Oxygen separating member and process for producing the same Oxygen separating member and process for producing the same

1985-12-19

1987-09-29

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

427 40, 427 41, 4272556, 4272557, 428447, B01D 5322

Patent

active

046966862

ABSTRACT:
An invention relates to an oxygen separating member including a composite membrane made of a porous substrate and an organopolysiloxane film formed on the surface of the substrate. A fluorine-containing organic compound is chemically in the organopolysiloxane film. The process for producing an oxygen separating member comprising a composite membrane having an organopolysiloxane film formed on the surface of a porous substrate includes exposing the film in an inert gas plasma to produce radical active sites in the organopolysiloxane film, and then contacting it with a gaseous fluorine-containing organic compound containing a radical polymerization group to form a chemical linkage between said organopolysiloxane and fluorine-containing compound.

REFERENCES:
patent: 4239793 (1980-12-01), Matsuura et al.
patent: 4410338 (1983-10-01), Yamamoto et al.
patent: 4483901 (1984-11-01), Okita et al.
patent: 4533369 (1985-08-01), Okita
patent: 4581043 (1986-04-01), van der Scheer
patent: 4594079 (1986-06-01), Yamamoto et al.

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