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:
Jan. 05, 2021
Filed:
Mar. 13, 2017
Applicant:
Idemitsu Kosan Co.,ltd., Tokyo, JP;
Inventor:
Yoji Sunagawa, Sodegaura, JP;
Assignee:
IDEMITSU KOSAN CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C10M 161/00 (2006.01); C10M 129/68 (2006.01); C10M 129/95 (2006.01); C10M 135/20 (2006.01); C10M 137/04 (2006.01); C10M 143/00 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01); C10N 30/02 (2006.01); C10N 30/06 (2006.01); C10N 30/00 (2006.01); C10N 40/02 (2006.01); C10N 40/04 (2006.01); C10N 40/08 (2006.01); C10N 40/20 (2006.01); C10N 40/22 (2006.01); C10N 40/25 (2006.01); C10N 40/30 (2006.01); C10N 40/00 (2006.01);
U.S. Cl.
CPC ...
C10M 161/00 (2013.01); C10M 129/68 (2013.01); C10M 129/95 (2013.01); C10M 135/20 (2013.01); C10M 137/04 (2013.01); C10M 143/00 (2013.01); C10M 2203/1025 (2013.01); C10M 2205/02 (2013.01); C10M 2205/022 (2013.01); C10M 2205/0285 (2013.01); C10M 2207/026 (2013.01); C10M 2207/126 (2013.01); C10M 2207/28 (2013.01); C10M 2207/34 (2013.01); C10M 2209/084 (2013.01); C10M 2215/28 (2013.01); C10M 2219/08 (2013.01); C10M 2219/082 (2013.01); C10M 2219/106 (2013.01); C10M 2223/04 (2013.01); C10N 2020/02 (2013.01); C10N 2020/04 (2013.01); C10N 2030/02 (2013.01); C10N 2030/06 (2013.01); C10N 2030/42 (2020.05); C10N 2030/43 (2020.05); C10N 2030/68 (2020.05); C10N 2040/02 (2013.01); C10N 2040/04 (2013.01); C10N 2040/044 (2020.05); C10N 2040/08 (2013.01); C10N 2040/135 (2020.05); C10N 2040/20 (2013.01); C10N 2040/22 (2013.01); C10N 2040/25 (2013.01); C10N 2040/252 (2020.05); C10N 2040/255 (2020.05); C10N 2040/30 (2013.01);
Abstract
Provided are; a lubricating oil composition excellent in fuel saving performance, seizure resistance, wear resistance, fatigue lifetime and shear stability, which contains a base oil (A), an olefin polymer (B) having a number average molecular weight of 1,000 or more and 12,000 or less, and a specific sulfur compound (C) and wherein the content of all sulfur atoms based on the total amount of the composition is 1.2% by mass or more and 2.5% by mass or less; and a lubrication method using the lubricating oil composition.