Polymeric blends

Details Polymeric blends Polymeric blends

C - Chemistry, Metallurgy

08

L

400/3073, 337/82

C08L 27/16 (2006.01) C08L 23/08 (2006.01) C08L 27/18 (2006.01) C08L 53/00 (2006.01) H01B 1/20 (2006.01) H01B 1/22 (2006.01) H01B 1/24 (2006.01) H01B 3/28 (2006.01) H01B 3/44 (2006.01)

Patent

CA 1335738

Novel compositions comprise a blend of (A) a thermoplastic polymer selected from copolymers of ethylene and tetrafluoroethylene, and thermoplastic vinylidene fluoride polymers; and (B) a thermoplastic elastomer having (i) at least one elastomeric segment comprising (a) vinylidene fluoride, hexa- or pentafluoropropylene, and tetrafluoroethylene repeating units in a mole ratio of 45-90:5-50:0-35 or (b) perfluoro(alkyl vinyl ether), tetrafluoroethylene and vinylidene fluoride repeating units in a mole ratio of 15-75:0-85:0-85; and (ii) at least one nonelasto- meric segment selected from segments comprising ethylene and tetrafluoroethylene repeating units in a mole ratio of 40-60:60-40, and segments comprising vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene repeating units in a mole ratio of 0-100:0-50:0-100, with the proviso that if the thermoplastic polymer is a vinylidene fluoride polymer, the blend is crosslinked.

561420

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