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:
Jul. 25, 2017
Filed:
Mar. 13, 2014
Applicant:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Inventor:
Toshiaki Iwai, Ichihara, JP;
Assignee:
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C10M 141/10 (2006.01); C10M 163/00 (2006.01); C10M 169/04 (2006.01);
U.S. Cl.
CPC ...
C10M 141/10 (2013.01); C10M 163/00 (2013.01); C10M 169/045 (2013.01); C10M 2203/1025 (2013.01); C10M 2207/026 (2013.01); C10M 2207/028 (2013.01); C10M 2207/046 (2013.01); C10M 2207/144 (2013.01); C10M 2207/262 (2013.01); C10M 2207/289 (2013.01); C10M 2215/064 (2013.01); C10M 2215/28 (2013.01); C10M 2219/046 (2013.01); C10M 2219/08 (2013.01); C10M 2219/106 (2013.01); C10M 2223/045 (2013.01); C10M 2223/047 (2013.01); C10M 2223/049 (2013.01); C10M 2229/02 (2013.01); C10N 2220/022 (2013.01); C10N 2230/06 (2013.01); C10N 2230/12 (2013.01); C10N 2230/52 (2013.01); C10N 2230/54 (2013.01); C10N 2240/04 (2013.01); C10N 2240/042 (2013.01); C10N 2240/045 (2013.01);
Abstract
A lubricating oil composition is provided by blending a base oil and an additive, the additive including (a) at least one of an alkaline earth metal sulfonate, an alkaline earth metal salicylate and an alkaline earth metal phenate, (b) a sulfur-containing phosphorus compound, and (c) a thiadiazole compound. A product ((c)×P) of a mass (mass %) of the component (c) and a mass (mass ppm) of a phosphorus element in the component (b) in the composition is in a range from 1 to 50.