Patent ID: 8357757

Claim:
A fluorine-containing alloyed copolymer, which comprises a fluorine-containing elastomer copolymer consisting of vinylidene fluoride, tetrafluoroethylene and perfluoro(methyl vinyl ether) or consisting of tetrafluoroethylene and perfluoro(methyl vinyl ether), having a fluorine content of not less than 64% by weight, and a resinous fluorine-containing copolymer consisting of tetrafluoroethylene, perfluoro(ethyl vinyl ether) and perfluoro(propyl vinyl ether) having a copolymerization proportion of tetrafluoroethylene of not more than 95 mol. %, and an amount of heat of crystal fusion ΔH being non-detectable, and both the fluorine-containing elastomer copolymer and the resinous fluorine-containing copolymer having iodine and/or bromine atoms derived from ICF 2 CF 2 Br introduced into copolymer terminals, as blended together.