The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 2013
Filed:
Jun. 29, 2007
Mitsuru Kishine, Settsu, JP;
Masanori Kitaichi, Settsu, JP;
Yousuke Nishimura, Settsu, JP;
Manabu Fujisawa, Settsu, JP;
Yoshiki Tanaka, Settsu, JP;
Shintarou Ogata, Settsu, JP;
Yutaka Ueta, Settsu, JP;
Shigeru Morita, Settsu, JP;
Mitsuru Kishine, Settsu, JP;
Masanori Kitaichi, Settsu, JP;
Yousuke Nishimura, Settsu, JP;
Manabu Fujisawa, Settsu, JP;
Yoshiki Tanaka, Settsu, JP;
Shintarou Ogata, Settsu, JP;
Yutaka Ueta, Settsu, JP;
Shigeru Morita, Settsu, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
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.