Supported ion exchange membrane films

C - Chemistry – Metallurgy – 08 – L

Patent

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154/101, 204/202

C08L 27/12 (2006.01) B01D 67/00 (2006.01) B01D 69/10 (2006.01) B01D 71/32 (2006.01) C08J 3/09 (2006.01) C08J 5/18 (2006.01) C08J 5/22 (2006.01) H01M 8/02 (2006.01) H01M 8/10 (2006.01)

Patent

CA 1254824

ABSTRACT The invention is a method for supporting an ion exchange active film comprising: (a) at least partially coating a polytetra- fluoroethylene fabric with a sizing composition; (b) contacting the coated polytetrafluoro- ethylene fabric with a film having sites convertible to ion exchange active groups; and (c) heating the polytetrafluoroethylene fabric and the membrane film while maintaining the fabric and the film in contact. 34,246-F

510617

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