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.

Date of Patent:
Apr. 01, 2025

Filed:

Jun. 03, 2021
Applicant:

Nok Klueber Co., Ltd., Tokyo, JP;

Inventors:

Akihiko Shimura, Ibaraki, JP;

Toshio Nitta, Ibaraki, JP;

Keita Nakashi, Ibaraki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 135/10 (2006.01); C10M 169/04 (2006.01); C10N 30/12 (2006.01);
U.S. Cl.
CPC ...
C10M 135/10 (2013.01); C10M 169/04 (2013.01); C10M 2203/003 (2013.01); C10M 2207/2855 (2013.01); C10M 2215/1026 (2013.01); C10M 2219/044 (2013.01); C10N 2030/12 (2013.01);
Abstract

A lubricant composition containing a base oil, an alkyl benzene sulfonate metal salt, and an alkyl naphthalene sulfonate metal salt, wherein a total content of the alkyl benzene sulfonate metal salt and the alkyl naphthalene sulfonate metal salt is 1 to 2.2% by mass, and a mass fraction of the alkyl benzene sulfonate metal salt to a total mass of the alkyl benzene sulfonate metal salt and the alkyl naphthalene sulfonate metal salt is 0.3 or more.


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