FLUORINE-CONTAINING ELASTOMER AND A VULCANIZABLE COMPOSITION THEREOF
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Apr 9, 2015
app pub date -
Apr 22, 2013
filing date -
May 15, 2012
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Abstract
A quaternary copolymer, fluorine-containing elastomer having a copolymerization composition comprising:
- (A) 2.0 to 8.0 mol % of vinylidene fluoride,(B) 60.0 to 70.0 mol % of tetrafluoroethylene,(C) 35.0 to 25.0 mol % of perfluoro(lower alkyl vinyl ether) or perfluoro(lower alkoxy-lower alkyl vinyl ether), and(D) 0.2 to 3.0 mol % of a perfluoro unsaturated nitrile compound, and having a Mooney viscosity ML1+10(121° C.) of 65 to 110, as well as a vulcanizable fluorine-containing elastomer composition comprising said fluorine-containing elastomer and a bisamidoxime compound in an amount of 0.2 to 5 parts by weight based on 100 parts by weight of the fluorine-containing elastomer. A sealing material obtained by vulcanization-molding of the fluorine-containing elastomer has not only excellent compression set characteristics and plasma resistance, but also low adhesion to metal at a higher temperature, specifically 150° C.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
EAGLE INDUSTRY CO LTD | MINATO-KU TOKYO 105-8587 |
International Classification(s)

- 2013 Application Filing Year
- C09K Class
- 2036 Applications Filed
- 1761 Patents Issued To-Date
- 86.50 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Ikeda, Akihiko | Ibaraki, JP | 54 | 545 |
# of filed Patents : 54 Total Citations : 545 | |||
Kudo, Masahi | Kanagawa, JP | 1 | 1 |
# of filed Patents : 1 Total Citations : 1 | |||
Maeda, Mitsuru | Ibaraki, JP | 156 | 1957 |
# of filed Patents : 156 Total Citations : 1957 | |||
Mori, Kunihiko | Kumamoto, JP | 22 | 385 |
# of filed Patents : 22 Total Citations : 385 | |||
Nameki, Hideto | Kumamoto, JP | 7 | 46 |
# of filed Patents : 7 Total Citations : 46 |
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Patent Citation Ranking
- 1 Citation Count
- C09K Class
- 18.79 % this patent is cited more than
- 10 Age
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 9, 2026 |
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Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text
US Patent Application No: 2015/0099,850
FLUORINE-CONTAINING ELASTOMER AND A VULCANIZABLE COMPOSITION THEREOF
Abstract
A quaternary copolymer, fluorine-containing elastomer having a copolymerization composition comprising:
- (A) 2.0 to 8.0 mol % of vinylidene fluoride,(B) 60.0 to 70.0 mol % of tetrafluoroethylene,(C) 35.0 to 25.0 mol % of perfluoro(lower alkyl vinyl ether) or perfluoro(lower alkoxy-lower alkyl vinyl ether), and(D) 0.2 to 3.0 mol % of a perfluoro unsaturated nitrile compound, and having a Mooney viscosity ML1+10(121° C.) of 65 to 110, as well as a vulcanizable fluorine-containing elastomer composition comprising said fluorine-containing elastomer and a bisamidoxime compound in an amount of 0.2 to 5 parts by weight based on 100 parts by weight of the fluorine-containing elastomer. A sealing material obtained by vulcanization-molding of the fluorine-containing elastomer has not only excellent compression set characteristics and plasma resistance, but also low adhesion to metal at a higher temperature, specifically 150° C.
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