Fluoropolymer blends

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 299/00 (2006.01) B29C 61/00 (2006.01) C08L 23/28 (2006.01) C08L 27/12 (2006.01) H01B 3/30 (2006.01) H01B 3/44 (2006.01) H01B 5/16 (2006.01) H01B 7/28 (2006.01) H01B 7/30 (2006.01)

Patent

CA 2062727

A polymer blend comprises (A) a fluorinated ethylenepropylene copolymer and (B) a fluoroelastomer. The fluoroelastomer comprises a block copolymer comprising at least one elastomeric segment comprising tetrafluoroethylene, vinylidene fluoride, and hexafluoropropylene repeat units in a mole ratio 45-90:5-50:0-35 and at least one nonelastomeric segment comprising tetrafluoroethylene and ethylene repeat units. The weight per cent of copolymer (A) relative to the combined weights of copolymer (A) and fluoroelastomer (B) is between about 70 and about 97% or between about 3 and about 30%.

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