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:
Oct. 22, 2013
Filed:
Apr. 07, 2009
Hiroyuki Sano, Fujisawa, JP;
Hiroyuki Sano, Fujisawa, JP;
Nok Corporation, Tokyo, JP;
Abstract
[Object] To provide a fluororubber-based sealing material which is excellent in sealing properties under high/low temperature load and is capable of sealing at a temperature of not higher than −40° C. even when gas oil (diesel fuel) is used. [Means for Solving] A fluororubber-based sealing material obtained by crosslinking a composition for a fluororubber-based sealing material, said composition comprising 100 parts by weight of a fluorine-containing copolymer which contains 64 to 69% by weight of fluorine, has a crosslinking site derived from a bromine-containing compound and/or an iodine-containing compound and is capable of being crosslinked by a peroxide, 0.5 to 6 parts by weight of an organic peroxide and 1 to 10 parts by weight of a polyfunctional monomer, wherein the fluorine-containing copolymer in the composition for a fluororubber-based sealing material is a fluororubber polymer obtained by copolymerizing (a) VDF, (b) TFE, (c) FMVE, (d) FMMVE and (e) brominated/iodinated unsaturated fluorohydrocarbon.