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. 16, 2019
Filed:
Aug. 12, 2015
Applicant:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Inventors:
Shinji Aoki, Ichihara, JP;
Tadashi Kisen, Ichihara, JP;
Assignee:
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C10M 105/36 (2006.01); C10M 169/04 (2006.01); C10M 145/30 (2006.01);
U.S. Cl.
CPC ...
C10M 169/041 (2013.01); C10M 105/36 (2013.01); C10M 145/30 (2013.01); C10M 2207/0406 (2013.01); C10M 2207/2825 (2013.01); C10M 2207/2845 (2013.01); C10M 2207/2855 (2013.01); C10M 2209/084 (2013.01); C10M 2209/103 (2013.01); C10M 2209/105 (2013.01); C10M 2209/1033 (2013.01); C10M 2209/1045 (2013.01); C10N 2230/00 (2013.01); C10N 2230/02 (2013.01); C10N 2230/68 (2013.01); C10N 2240/02 (2013.01); C10N 2240/04 (2013.01); C10N 2240/08 (2013.01);
Abstract
A lubricating oil composition prepared by blending a base oil (A) containing a compound (A1) that is an ester or ether and has two or more aromatic rings, with a polyalkylene glycol (B) is provided. The lubricating oil composition has a high density (i.e., a high bulk modulus), a high viscosity index, and excellent shear stability.