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:
Jan. 06, 1976
Filed:
Mar. 25, 1974
Yutaka Kometani, Toyonaka, JA;
Shun Koizumi, Toyonaka, JA;
Takeshi Suzuki, Kyoto, JA;
Yasuyoshi Furukawa, Osaka, JA;
Masayasu Tomoda, Takatsuki, JA;
Kiyoichi Kondo, Settsu, JA;
Daikin Kogyo Co., Ltd., Osaka, JA;
Abstract
A fluoroelastomer composition which contains (a) a fluoroelastomer, (b) at least one member selected from the group consisting of bivalent metal oxide, bivalent metal hydroxide and mixture 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 imidazole or imidazoline, provides a fluoro-rubber having a low compression set and an excellent elastic property. The fluoroelastomer composition can be handled and processed with safety, and yet can be cured at a good cure rate, and has excellent storage properties. The cure rate of the composition is more accelerated by further addition of (e) water or a metal compound which produces water by reacting it with hydrogen fluoride.