| abstract |
Flexibility, not easily thermo-color and the fluoroelastomer composition of formability excellence excellent to the oil-proofness of automatic speed variator wet goods lubricating oil are provided, employ the formed body of this fluoroelastomer composition, cross-linking agent and covered electric cable.A kind of fluoroelastomer composition, it comprises tetrafluoroethylene/propylene copolymer (a), Tefzel (b) and the ethylene copolymer (c) containing epoxy group(ing), aforementioned tetrafluoroethylene/propylene copolymer (a) is 70/30 ~ 40/60 with the mass ratio [(a)/(b)] of aforementioned Tefzel (b), and aforementioned Tefzel (b) is 100/0.1 ~ 100/10 with the mass ratio [(b)/(c)] of the aforementioned ethylene copolymer (c) containing epoxy group(ing). |