Multilayer reverse osmosis membrane in which one layer is...

Details Multilayer reverse osmosis membrane in which one layer is... Multilayer reverse osmosis membrane in which one layer is...

B - Operations, Transporting

01

D

402/239, 117/88.

B01D 71/56 (2006.01) B01D 69/12 (2006.01) C08G 69/26 (2006.01) C08G 73/10 (2006.01)

Patent

CA 1306826

Abstract A multilayer membrane for performing reverse osmosis is disclosed. The membrane comprises a porous support and interfacially polymerized thereon a superposed layer of poly meta-phenylene tetrahydrofuran-2,3,4,5-tetracarboxamide in which up to 50 mole % of the tetrahydrofuran-2,3,4,5-tetracarboxamide units have been replaced with isophthalamide or terephthalamide units. The preferred material for forming the support is a polysulfone. AD-5610 35

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