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. 23, 2009
Filed:
Jun. 01, 2005
Yoshitaka Tamoto, Ichihara, JP;
Yoshitaka Tamoto, Ichihara, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
Provided is a lube base oil capable of giving a lubricating oil composition which has a low viscosity, but is small in evaporation amount has a low coefficient of friction and excellent adaptability for organic materials, and is suitable for use in a high-temperature atmosphere and a lubricating oil composition containing the lube base oil and having such properties. The lube base oil comprises as a main component an ether compound represented by the general formula R—O—R(wherein Rand Reach independently represents an alkyl group having 2 to 26 carbon atoms) has a kinematic viscosity at 100° C. of 3.5 mm/s or lower, has a mass loss through evaporation as measured through Noack test (at 250° C.; 1 hour) of 30% by mass or lower and/or has a flash point of 200° C. or higher, and has an aniline point of 60° C. or higher. The lubricating oil composition comprises (A) the lube base oil and (B) an organomolybdenum compound incorporated therein in an amount of 100 to 2,000 ppm by mass in terms of molybdenum amount based on a total amount of the composition.