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Title:
METHOD FOR PRODUCING FLUORINE-CONTAINING ELASTOMER POLYMER
Document Type and Number:
WIPO Patent Application WO/2005/097836
Kind Code:
A1
Abstract:
Disclosed is a method for producing a fluorine-containing elastomer polymer which is excellent in formability, mechanical strength such as tensile strength and chemical strength such as chemical resistance. Specifically disclosed is a method for producing a fluorine-containing elastomer polymer which comprises a first polymerization step wherein an aqueous emulsion is obtained by emulsion-polymerizing a fluorine-containing monomer [A] in an aqueous solvent in the presence of an emulsifying agent containing a fluorine-containing vinyl group, and a second polymerization step wherein a fluorine-containing elastomer polymer is produced by emulsion-polymerizing a fluorine-containing monomer [B] in the thus-obtained aqueous emulsion. This method for producing a fluorine-containing elastomer polymer is characterized in that the emulsifying agent containing a fluorine-containing vinyl group is composed of a compound having a radically polymerizable unsaturated bond and a hydrophilic group in a molecule.

Inventors:
Tsuda, Nobuhiko c/o DAIKIN INDUSTRIES LTD. (Yodogawa Plant. 1-1, Nishihitotsuya, Settsu-sh, Osaka 85, 56685, JP)
Tanaka, Yoshiki c/o DAIKIN INDUSTRIES LTD. (Yodogawa Plant. 1-1, Nishihitotsuya, Settsu-sh, Osaka 85, 56685, JP)
Morita, Shigeru c/o DAIKIN INDUSTRIES LTD. (Yodogawa Plant. 1-1, Nishihitotsuya, Settsu-sh, Osaka 85, 56685, JP)
Sawada, Yasuhiko c/o DAIKIN INDUSTRIES LTD. (Yodogawa Plant. 1-1, Nishihitotsuya, Settsu-sh, Osaka 85, 56685, JP)
Shimizu, Tetsuo c/o DAIKIN INDUSTRIES LTD. (Yodogawa Plant. 1-1, Nishihitotsuya, Settsu-sh, Osaka 85, 56685, JP)
Application Number:
PCT/JP2005/006678
Publication Date:
October 20, 2005
Filing Date:
April 05, 2005
Export Citation:
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Assignee:
DAIKIN INDUSTRIES, LTD. (Umeda Center Building, 4-12 Nakazaki-Nishi 2-Chome, Kita-ku, Osaka-Sh, Osaka 23, 53083, JP)
Tsuda, Nobuhiko c/o DAIKIN INDUSTRIES LTD. (Yodogawa Plant. 1-1, Nishihitotsuya, Settsu-sh, Osaka 85, 56685, JP)
Tanaka, Yoshiki c/o DAIKIN INDUSTRIES LTD. (Yodogawa Plant. 1-1, Nishihitotsuya, Settsu-sh, Osaka 85, 56685, JP)
Morita, Shigeru c/o DAIKIN INDUSTRIES LTD. (Yodogawa Plant. 1-1, Nishihitotsuya, Settsu-sh, Osaka 85, 56685, JP)
Sawada, Yasuhiko c/o DAIKIN INDUSTRIES LTD. (Yodogawa Plant. 1-1, Nishihitotsuya, Settsu-sh, Osaka 85, 56685, JP)
Shimizu, Tetsuo c/o DAIKIN INDUSTRIES LTD. (Yodogawa Plant. 1-1, Nishihitotsuya, Settsu-sh, Osaka 85, 56685, JP)
International Classes:
C08F2/24; C08F2/26; C08F2/38; C08F2/44; C08F14/18; C08F214/18; C08F216/14; C08F259/08; (IPC1-7): C08F2/26; C08F2/38; C08F214/18; C08F216/14
Domestic Patent References:
WO1995033782A1
WO2000001741A1
Foreign References:
JPS6133848B2
Other References:
See also references of EP 1739100A1
Attorney, Agent or Firm:
Yasutomi, Yasuo (Chuo BLDG. 4-20, Nishinakajima 5-chome Yodogawa-ku, Osaka-sh, Osaka 11, 53200, JP)
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