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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.:

US 10584302 B1

PDFFull Text
Date of Patent:
Mar. 10, 2020

Filed:

Sep. 18, 2015

Lubricating oil composition and method for manufacturing said lubricating oil composition

Applicant:

Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;

Inventor:

Kazushi Tamura, Kawasaki, JP;

Assignee:

IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Prem C Singh

Assistant Examiner:

Francis C Campanell

Int. Cl.
CPC ...
C10M 173/02 (2006.01); C10L 1/22 (2006.01); C08K 5/01 (2006.01); C10M 129/54 (2006.01); C10M 161/00 (2006.01); C10M 163/00 (2006.01); C10M 139/00 (2006.01); C10M 125/26 (2006.01); C10M 107/02 (2006.01); C10M 133/44 (2006.01); C10M 169/04 (2006.01);
U.S. Cl.
CPC ...
C10M 161/00 (2013.01); C10M 107/02 (2013.01); C10M 125/26 (2013.01); C10M 133/44 (2013.01); C10M 139/00 (2013.01); C10M 163/00 (2013.01); C10M 169/044 (2013.01); C10M 2201/087 (2013.01); C10M 2203/1025 (2013.01); C10M 2205/0285 (2013.01); C10M 2207/028 (2013.01); C10M 2207/262 (2013.01); C10M 2209/084 (2013.01); C10M 2215/28 (2013.01); C10M 2215/30 (2013.01); C10M 2219/044 (2013.01); C10M 2219/046 (2013.01); C10M 2219/068 (2013.01); C10M 2223/045 (2013.01); C10M 2227/06 (2013.01); C10M 2227/09 (2013.01); C10N 2210/02 (2013.01); C10N 2210/06 (2013.01); C10N 2220/021 (2013.01); C10N 2220/029 (2013.01); C10N 2230/04 (2013.01); C10N 2230/54 (2013.01); C10N 2230/68 (2013.01); C10N 2240/104 (2013.01); C10N 2240/105 (2013.01);
Abstract

The lubricating oil composition of the present invention contains, together with a base oil, a viscosity index improver (A) including a comb-shaped polymer (A1), a detergent dispersant (B) including an alkali metal borate (B1) and an organometallic compound (B2) containing a metal atom selected from an alkali metal atom and an alkaline earth metal atom, and a friction modifier (C) including a molybdenum-containing friction modifier, with the total content of an alkali metal atom and an alkaline earth metal atom being 2,000 mass ppm or less. The lubricating oil composition of the present invention has excellent detergency, fuel saving properties, and LSPI-preventing properties.

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