Japan Atomic Energy Research Institute

Matsumura Oil Research Corp.

Natsumra Oil Research Corporation

Takao Soda

Kazuyuki Nakamura

Yoshio Murakami

Miyuki Hagiwara

Kazuo Arakawa

Kenjiro Obara

Tetsuya Yagi

Tamio Akada

Naohiro Hayakawa

Kenzo Yoshida

Hiroshi Nakanishi

Toshihiro Kanie

Tsuneo Sasuga

Tamio Adaka

Mitsuo Hirohama

A lubricating grease exhibits good lubricating performance in a hot and high-vacuum environment, and contains an alkyl substituted tetraphenylether as a base oil having incorporated therein bentonite as a thickener and at least one solid lubricant selected from the group consisting of molybdenum disulfide and tungsten disulfide.

Lubricating grease

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.

Super highly radiation-resistant grease

Growing community of inventors

Hyogo, Japan

Takao Soda