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:
Mar. 27, 1979
Filed:
Apr. 27, 1977
Yutaka Kometani, Toyonaka, JP;
Shinichi Nakagawa, Osaka, JP;
Takeshi Suzuki, Nagaokakyo, JP;
Yasuyoshi Furukawa, Neyagawa, JP;
Tsuneo Nakagawa, Ibaraki, JP;
Masayasu Tomoda, Takatsuki, JP;
Masahiko Oka, Takatsuki, JP;
Tutomu Terada, Toyonaka, JP;
Yutaka Ueta, Ibaraki, JP;
Daikin Kogyo Co., Ltd., Osaka, JP;
Abstract
A fluoroelastomer composition comprising (a) a fluoroelastomer having stabilized end group derived from an isoparaffin selected from the group consisting of isobutane, isopentane and isohexane, (b) at least one member selected from the group consisting of bivalent metal oxides, bivalent metal hydroxides and mixtures of bivalent metal oxide or metal hydroxide with metal salt of weak acid, (c) an aromatic polyhydroxy compound and (d) a quaternary ammonium compound of 8-alkyl- (or 8-aralkyl-)1,8-diazabicyclo[5.4.0]-7-undecenium, provides a fluoro-rubber having low compression set and excellent elastic properties and has excellent processing and storage properties. The fluoroelastomer can be cured with appropriate induction time and fast cure rate by the use of a specific curing agent system mentioned above.