Microporous membranes from poly(etheretherketone)-type...

Details Microporous membranes from poly(etheretherketone)-type... Microporous membranes from poly(etheretherketone)-type...

B - Operations, Transporting

01

D

B01D 71/52 (2006.01) B01D 67/00 (2006.01) C08J 9/26 (2006.01)

Patent

CA 2058182

The invention relates to a process for preparing a microporous membrane from an unsulfonated poly(etheretherketone)-type polymer by forming a mixture of an unsulfonated poly(etheretherketone)-type polymer, a low melting point crystallizable polymer, and a plasticizer, heating the resulting mixture, extruding or casting the mixture into a membrane, quenching or coagulating the membrane, and leaching the membrane, while optionally drawing the membrane before, during, after leaching, or a combination thereof.

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