Microporous polyester membranes and polymer assisted phase...

Details Microporous polyester membranes and polymer assisted phase... Microporous polyester membranes and polymer assisted phase...

B - Operations, Transporting

29

D

18/24

B29D 27/00 (1980.01)

Patent

CA 1047719

ABSTRACT OF THE DISCLOSURE A process is disclosed for producing a microporous membrane suitable as a membrane filler in liquid permeation, micro-filtration and ultrafiltration in reverse osmosis, as a porous support substrate or for another reverse osmosis membrane,- in electrophoresis, curtain electrophoresis, thin layer, gas or liquid chromotography or as a substrate for enzyme attach- ment. The process comprises dissolving a polyester resin and assisting polymer in a mutual solvent, casting the solution and evaporating the solvent from the polymer. Additionally, the assisting polymer may be leached from the membrane.

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