Coated asymmetric membrane system having oleophobic and...

B - Operations – Transporting – 01 – D

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B01D 69/12 (2006.01) B01D 71/36 (2006.01) B32B 5/18 (2006.01) C08J 5/18 (2006.01) C08J 7/04 (2006.01) C09D 129/04 (2006.01) C09D 139/02 (2006.01)

Patent

CA 2618350

A porous membrane assembly includes, in an exemplary embodiment, a porous membrane substrate having hydrophobic properties. The membrane substrate includes a first side, an opposing second side and a plurality of pores extending therethrough. The membrane substrate also includes a discontinuous layer of an oleophobic coating applied to the first side so that the plurality of pores in the first side are substantially free of the oleophobic coating, and a continuous layer of an amine containing hydrophilic polymer coating applied to the second side of the membrane substrate.

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