Copolymers of vinylidene fluoride and hexafluoropropylene...

Details Copolymers of vinylidene fluoride and hexafluoropropylene... Copolymers of vinylidene fluoride and hexafluoropropylene...

C - Chemistry, Metallurgy

08

F

C08F 214/28 (2006.01) C08F 214/22 (2006.01)

Patent

CA 2351171

New and novel copolymers of vinylidene fluoride and hexafluoropropylene containing up to 24% by weight hexafluoropropylene having lower DSC melting temperatures at 8 weight percent or greater nominal HFP content, and having improved solution clarity and fluidity, longer gel times and lower extractables than prior art vinylidene fluoride- hexafluoropropylene copolymers of comparable HFP content whose syntheses are disclosed in sufficient detail to duplicate, to novel compositions of matter and articles of manufacture containing such copolymers, processes for the preparation and use of the copolymers, of the compositions of matter containing such copolymers and of the articles of manufacture containing such copolymers are disclosed. Improved electrochemical cells based on the new and novel copolymers are particularly disclosed.

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