Patent ID: 9610547
Date: 2017-04-04
CPC Classifications: B01D,B29C,B29K,B29L,Y02P

Claim:
1. A method for separating a fluid mixture into a fraction enriched in a first component and a fraction depleted in the first component, comprising the step of contacting said fluid mixture with a fluid separation membrane while maintaining a pressure differential or, in the case of a gas component, a partial pressure differential across the membrane, said membrane having a perfluorohydrocarbon layer formed from a mixture of a copolymer of 2,2-bis(trifluoromethyl)-4,5-difluoro-1,3-dioxole based polymer and tetrafluoroethylene; and 2,2,4-trifluoro-5-trifluoromethoxy-1,3-dioxide based polymer on a surface of a porous poly(aryl ether ketone) substrate, whereby said fraction enriched in the first component and said fraction depleted in the first component are generated by preferentially permeating a portion of said fluid mixture through said fluid separation membrane.