Title:
FLUORORUBBER BASE SEALANT COMPOSITION AND FLUORORUBBER BASE SEALANT
Document Type and Number:
WIPO Patent Application WO/2004/069953
Kind Code:
A1
Abstract:
A fluororubber base sealant composition comprising 100 pts.wt of fluororubber, the fluororubber being a copolymer composed of 20 to 23 mol% of perfluoromethyl vinyl ether, 60 to 70 mol% of vinylidene fluoride, 10 to 20 mol% of ethylene tetrafluoride and 0 to 10 mol% of propylene hexafluoride (the sum of these: 100 mol%) together with a brominated and/or iodized unsaturated fluorohydrocarbon for crosslinking sites; 2 to 50 pts.wt. of bituminous fine powder; 0.5 to 6 pts.wt. of organic peroxide; and 1 to 10 pts.wt. of polyfunctional monomer. There is further provided a sealant obtained by vulcanizing this composition. This sealant excels in heat resistance, cold resistance and fuel oil resistance.
Inventors:
AMEMIYA TAKASHI (JP)
KUDO MASASHI (JP)
OGATA CHIYOTA (JP)
OKAMURA TATSUO (JP)
OTSUKA MASAYA (JP)
KUDO MASASHI (JP)
OGATA CHIYOTA (JP)
OKAMURA TATSUO (JP)
OTSUKA MASAYA (JP)
Application Number:
PCT/JP2004/001215
Publication Date:
August 19, 2004
Filing Date:
February 05, 2004
Export Citation:
Assignee:
NOK CORP (JP)
AMEMIYA TAKASHI (JP)
KUDO MASASHI (JP)
OGATA CHIYOTA (JP)
OKAMURA TATSUO (JP)
OTSUKA MASAYA (JP)
AMEMIYA TAKASHI (JP)
KUDO MASASHI (JP)
OGATA CHIYOTA (JP)
OKAMURA TATSUO (JP)
OTSUKA MASAYA (JP)
International Classes:
C08F214/18; C08K3/04; C08L27/12; C08K5/14; C09K3/10; (IPC1-7): C09K3/10
Foreign References:
| US4831085A | 1989-05-16 | |||
| JP2001192482A | 2001-07-17 | |||
| JPH0356545A | 1991-03-12 | |||
| EP0834571A1 | 1998-04-08 | |||
| JPH10139970A | 1998-05-26 |
Other References:
See also references of EP 1591508A4
Attorney, Agent or Firm:
Suzuki, Shunichiro (Gotanda Yamazaki Bldg. 6f 13-6, Nishigotanda 7-chom, Shinagawa-ku Tokyo 31, JP)
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