Asahi Glass Company, Limited

Hitachi Cable, Inc.

Yasumichi Ito

Takeshi Abe

Nobuaki Kunii

Hideki Yagyu

Hiroshi Wachi

Mituharu Morozumi

Makoto Noshiro

Masahiko Ichimura

Mitsuharu Morozumi

Minoru Asai

Takeshi Hiramatsu

Ikuo Seki

Rikichi Koike

A fluorine-containing elastomeric electric insulating material is disclosed. The material is a vulcanized product of a composition comprising 100 parts by weight of a fluorine-containing elastomeric copolymer having a number average molecular weight of from 20,000 to 60,000, containing as major components a unit based on tetrafluoroethylene and a unit based on an .alpha.-olefin having 2 to 4 carbon atoms and exhibiting rubber elasticity at room temperature, 0.1 to 5 parts by weight of an organic peroxide and 0.1 to 20 parts by weight of a polyallyl compound.

Fluorine-containing elastomeric electric insulating material and

A curable composition comprising an elastomeric vinylidene fluoride copolymer, a polyhydroxy compound and a vulcanization accelerator, characterized in that said copolymer contains from 2 to 50 mol % of vinylidene fluoride units and unsaturated bonds introduced by reacting an untreated elastomeric vinylidene fluoride copolymer dispersed in an aqueous medium, with an aqueous alkaline solution containing an onium compound.

Curable composition of elastomeric vinylidene fluoride copolymer

A fluoroelastomer composition comprising a fluoroelastomer and a polyvinylidene fluoride, wherein the fluoroelastomer is a peroxide-curable fluorinated copolymer elastomer, the polyvinylidene fluoride is fine powder having an average particle size of at most 20 .mu.m, and the composition contains a peroxide and an allyl compound as essential ingredients.

Fluoroelastomer composition and lining material made thereof

Ethylene-tetrafluorethylene copolymer compositions are stabilized against thermal degradation by incorporating therein a small amount of a copper compound.

Stabilized ethylene-tetrafluoroethylene copolymer composition

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Yokohama, Japan

Yasumichi Ito