Polymer membrane

Details Polymer membrane Polymer membrane

C - Chemistry, Metallurgy

25

B

18/19

C25B 13/08 (2006.01) B01D 67/00 (2006.01)

Patent

CA 1269505

27065-113 ABSTRACT POLYMER MEMBRANE Porous membranes of aromatic polymer polyanyl ether ketone) are prepared with pore size and surface area allowing use in place of asbestos membranes in hot alkaline electrolysis cells. The membranes are prepared by solvent extraction of a polymer such as aromatic sulfone polymers which is "partially incompatible" with the polyanyl polymer from a blend of the two. The membranes are preferably dried in the presence of a surfactant to enhance re-wetting in use.

481756

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