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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 11168281 B1

PDFFull Text
Date of Patent:
Nov. 09, 2021

Filed:

May. 18, 2018

Lubricating oil composition for internal combustion engine

Applicant:

Eneos Corporation, Tokyo, JP;

Inventors:

Hiromitsu Matsuda, Tokyo, JP;

Koji Hoshino, Tokyo, JP;

Assignee:

ENEOS CORPORATION, Tokyo, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Ellen M Mcavoy

Assistant Examiner:

Chantel L Graham

Int. Cl.
CPC ...
C10M 169/04 (2006.01); C10M 101/02 (2006.01); C10M 109/00 (2006.01); C10M 145/14 (2006.01); C10M 139/00 (2006.01); C10M 141/12 (2006.01); C10N 10/04 (2006.01); C10N 10/12 (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 40/25 (2006.01);
U.S. Cl.
CPC ...
C10M 169/044 (2013.01); C10M 101/02 (2013.01); C10M 109/00 (2013.01); C10M 139/00 (2013.01); C10M 141/12 (2013.01); C10M 145/14 (2013.01); C10M 2209/084 (2013.01); C10M 2227/06 (2013.01); C10N 2010/04 (2013.01); C10N 2010/12 (2013.01); C10N 2020/02 (2013.01); C10N 2020/04 (2013.01); C10N 2030/02 (2013.01); C10N 2030/06 (2013.01); C10N 2030/74 (2020.05); C10N 2040/25 (2013.01);
Abstract

A lubricating oil composition for an internal combustion engine, the composition including: a lubricating base oil comprising at least one mineral base oil or at least one synthetic base oil or any combination thereof, the lubricating base oil having a kinematic viscosity at 100° C. of 4.0 to 4.5 mm/s and a NOACK evaporation loss at 250° C. of no more than 15 mass %; (A) a calcium-containing metallic detergent in an amount of no less than 1000 mass ppm and less than 2000 mass ppm in terms of calcium on the basis of the total mass of the composition; (B) a magnesium-containing metallic detergent in an amount of 100 to 1000 mass ppm in terms of magnesium on the basis of the total mass of the composition; and optionally (C) a viscosity index improver in an amount of less than 1 mass % on the basis of the total mass of the composition.

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