Compositions based on elastomeric polymers of vinylidene...

C - Chemistry – Metallurgy – 08 – L

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C08L 27/14 (2006.01) C08J 9/00 (2006.01) C08J 9/10 (2006.01) C08K 13/02 (2006.01)

Patent

CA 2097344

ABSTRACT The present invention relates to compositions based on elas- tomeric polymers of vinylidene fluoride, hexafluoropropene and optionally tetrafluoroethylene suitable for providing microcellular foamed vulcanized articles by extrusion or compression molding. In the case of the production of ex- truded articles based on vinylidene fluoride and hexafluoro- propene copolymers, the compositions comprise: the copolymer, bisphenol AF, a quaternary phosphonium or aminophosphonium salt, azodicarbonamide, MaO, Ca(OH)2, zinc stearate and a plasticizer, each of the components being con- tained in an exactly defined proportion.

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