Selectively permeable membrane

Details Selectively permeable membrane Selectively permeable membrane

1990-05-18

1991-08-06

Dawson, Robert A.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210651, 210653, 21050027, 21050043, 55 16, 2642893, B01D 1300

Patent

active

050375547

ABSTRACT:
A water vapor permeable membrane, selectively impermeable to acid vapors, being constructed from a thin film layer of sulfoanted polyacrylonitrile containing a cationic dye on a supporting porous polyterafluoroethylene membrane.

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patent: 4889636 (1989-12-01), Perry et al.
Abstract-CA 99: 214823p-Membrane for Prevaporation-Sumitoma-Jpn. Kokai Tokkyo Koho UP 58-156304-9/83.

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