Quaterpolymers of the tetrafluoroethylene/ethylene type

Details Quaterpolymers of the tetrafluoroethylene/ethylene type Quaterpolymers of the tetrafluoroethylene/ethylene type

C - Chemistry, Metallurgy

08

F

117/206, 402/248

C08F 14/26 (2006.01) C08F 14/28 (2006.01) C08F 210/02 (2006.01) C08F 214/26 (2006.01) H01B 3/44 (2006.01)

Patent

CA 1214297

Abstract Quaterpolymers of the tetrafluoroethylene/ethylene type Quaterpolymers are described which are composed of the following copolymerized monomer units (in mole %): a) 55 to 30% of tetrafluoroethylene, b) 60 to 40% of ethylene, c) 10 to 1.5% of hexafluoropropylene and d) 2.5 to 0.05% of a vinyl monomer which has "bulky" side chains and which can be, for example, a perfluorina- ted olefin, a perfluorinated vinyl ether, a perfluoro- alkyl-substituted vinyl compound, a vinyl or allyl ether or an allyl or vinyl ester. The tensile strength and, in particular, the elongation at break at elevated temperatures is improved by the incorporation of both hexafluoropropylene and "bulky" vinyl monmers. The quaterpolymers are suit- able for the manufacture of extruded articles, mono- filaments and wire-coatings.

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