Process for modifying porous polymeric membrane

Details Process for modifying porous polymeric membrane Process for modifying porous polymeric membrane

1982-06-25

1984-12-04

Lieberman, Paul

Plastic and nonmetallic article shaping or treating: processes

Treating shaped or solid article

To shrink

264344, 528353, B29C 2500

Patent

active

044863764

ABSTRACT:
A modified polymeric membrane having an excellent separating property is produced by applying, to a porous polymeric membrane, a volatile treating liquid containing a modifying agent which consists of at least one member selected from:
(A) volatile dissolving organic liquids each capable of dissolving therein at least 1% by weight of the porous polymeric membrane at a temperature of 25.degree. C.; and

REFERENCES:
patent: 3228745 (1966-01-01), Galatioto
patent: 3640829 (1972-02-01), Elton
patent: 3819401 (1974-06-01), Massengale et al.
patent: 4107384 (1978-08-01), Musha et al.

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