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:
May. 10, 2022
Filed:
Mar. 27, 2019
Applicant:
Idemitsu Kosan Co.,ltd., Chiyoda-ku, JP;
Inventors:
Assignee:
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C10M 105/34 (2006.01); C07C 69/753 (2006.01); C10N 20/00 (2006.01); C10N 40/04 (2006.01); C10N 20/02 (2006.01); C10N 30/02 (2006.01);
U.S. Cl.
CPC ...
C10M 105/34 (2013.01); C07C 69/753 (2013.01); C07C 2602/42 (2017.05); C07C 2602/44 (2017.05); C10M 2203/045 (2013.01); C10M 2207/085 (2013.01); C10M 2207/2805 (2013.01); C10M 2207/2815 (2013.01); C10N 2020/02 (2013.01); C10N 2020/071 (2020.05); C10N 2030/02 (2013.01); C10N 2040/045 (2020.05); C10N 2040/046 (2020.05);
Abstract
Provided are: a lubricant base oil capable of achieving both a high traction coefficient and an excellent low-temperature fluidity at a higher level and having a high flash point, which contains a ring-containing compound having at least (i) a crosslinked bicyclic ring where two rings are bonded while sharing 3 or more carbon atoms, and (ii) an acyloxy group or a hydrocarbyloxycarbonyl group each containing a branched hydrocarbon group with a main chain having 4 or more carbon atoms, a lubricating oil composition containing the lubricant base oil, and a continuously variable transmission using the lubricating oil composition.