Novel membranes and process for making them

Details Novel membranes and process for making them Novel membranes and process for making them

1987-03-10

1988-08-02

Anderson, Philip

Liquid purification or separation

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Material

21050038, 21050040, 21050041, 264 41, 264216, 26433119, C08J 928, B29C 3910

Patent

active

047612339

ABSTRACT:
A process for preparing a microporous membrane, which comprises casting the membrane from a solution comprising a mixture of at least one pore-forming polymer and at least one film-forming polymer, and a solvent for the mixture of polymers, wherein the at least one pore-forming polymer is one which if cast alone would contract to form either large pores or a non-uniform distribution of material.

REFERENCES:
patent: 4595503 (1986-06-01), Schindler et al.
patent: 4605526 (1986-08-01), Reynhout et al.

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