Process for producing composite membrane

Details Process for producing composite membrane Process for producing composite membrane

1984-10-23

1986-05-20

Schofer, Joseph L.

Coating processes

Foraminous product produced

Filter, sponge, or foam

428218, 4284735, 428447, B05D 500

Patent

active

045900981

ABSTRACT:
A process for producing a composite membrane is disclosed. The composite membrane is produced by bringing an organic solution of a specific cross-linkable silicone resin into contact with the surface of a dense layer of an anisotropic membrane made of a polyimide resin. The composite membrane is useful for separation of an organic solution containing a relatively small solute, liquid/liquid separation by pervaporation method, and concentration and separation of gases.

REFERENCES:
patent: 3925211 (1975-12-01), Schumann et al.
patent: 4333897 (1982-06-01), Hayashi et al.
patent: 4358378 (1982-11-01), Iwama et al.
patent: 4385084 (1983-05-01), Iwama et al.
patent: 4474858 (1984-10-01), Makino et al.

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