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:
Jun. 28, 1988
Filed:
May. 15, 1987
Kazuo Arakawa, Gunma, JP;
Tsuneo Sasuga, Gunma, JP;
Miyuki Hagiwara, Gunma, JP;
Naohiro Hayakawa, Gunma, JP;
Kenzo Yoshida, Gunma, JP;
Hiroshi Nakanishi, Hyogo, JP;
Mitsuo Hirohama, Hyogo, JP;
Tetsuya Yagi, Osaka, JP;
Tamio Akada, Hyogo, JP;
Takao Soda, Hyogo, JP;
Japan Atomic Energy Research Institute, Tokyo, JP;
Matsumura Oil Research Corporation, Hyogo, JP;
Abstract
A radiation-resistant grease that is stable under elevated temperatures is disclosed. The grease is prepared by mixing a bentonite-based thickening agent with a base oil composed of m-(m-phenoxyphenoxy)diphenyl, pentaphenyl ether, a monoalkyltriphenyl ether or a monoalkyltetraphenyl ether (provided that the alkyl group contains 6-20 carbon atoms). To the mixture is added, if necessary, a gelling aid composed of an aliphatic alcohol, an aliphatic ketone and/or an aliphatic carbonate ester.