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:
Dec. 01, 2009
Filed:
Mar. 24, 2005
Norihisa Horaguchi, Aichi-ken, JP;
Shiki Matsuo, Aichi-ken, JP;
Hideo Kometani, Aichi-ken, JP;
Naomoto Ishikawa, Aichi-ken, JP;
Tatsushi Seko, Aichi-ken, JP;
Yusuke Kinoshita, Aichi-ken, JP;
Masaru Seto, Osaka, JP;
Kimihito Hitotsumatsu, Aichi-ken, JP;
Norihisa Horaguchi, Aichi-ken, JP;
Shiki Matsuo, Aichi-ken, JP;
Hideo Kometani, Aichi-ken, JP;
Naomoto Ishikawa, Aichi-ken, JP;
Tatsushi Seko, Aichi-ken, JP;
Yusuke Kinoshita, Aichi-ken, JP;
Masaru Seto, Osaka, JP;
Kimihito Hitotsumatsu, Aichi-ken, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Sato Special Oil Co., Ltd., Osaka, JP;
Abstract
A high-temperature lubricating oil composition is provided, which is resistant to hardening and sludge formation, and displays minimal evaporation loss and superior thermal stability, even under practical high-temperature open system conditions such as those found in a tenter. A lubricating oil composition that provides excellent lubrication without damaging members used within working machinery is also provided. The lubricating oil composition comprises a polyolester based synthetic oil and a Cto Cfatty acid and/or a diphenylamine derivative containing an arylalkyl group with a number average molecular weight of 400 to 800.