Daikin Industries, Ltd.

Shintarou Ogata

Mitsuru Kishine

Shigeru Morita

Yutaka Ueta

Manabu Fujisawa

Masanori Kitaichi

Yoshiki Tanaka

Yousuke Nishimura

The present invention provides a method of producing a fluoroelastomer excellent in dispersion stability at low cost, at a high rate of polymerization and in high yields. The present invention is a method of producing a fluoroelastomer comprising an emulsion polymerization of a fluorinated monomer in the presence of a water-soluble radical polymerization initiator, wherein the emulsion polymerization is carried out in the presence of a compound (1) containing a functional group reactive in radical polymerization and a hydrophilic group and a fluorinated compound (2) containing a fluorocarbon group comprising 1 to 6 continuously united carbon atom with fluorine atom directly bound to each of them as well as a hydrophilic group.

Method for producing fluorine-containing elastomer

The present invention provides a fluorine-containing elastomer composition comprising a fluorine-containing elastomer (A) and a fluorine-containing elastomer (B) having a fluorine amount of at least 67% by weigh and a lower molecular weight than the fluorine-containing elastomer (A), wherein the fluorine amount of the fluorine-containing elastomer (B) is larger than a fluorine amount of the fluorine-containing elastomer (A). The present invention also provides a molded article obtained by crosslinking the fluorine-containing elastomer composition.

Fluorine containing elastomer composition and molded article comprising the same

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Settsu, Japan

Shintarou Ogata