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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 12600917 B1

PDFFull Text
Date of Patent:
Apr. 14, 2026

Filed:

Sep. 11, 2023

Lubricating oil additive composition and lubricating oil composition

Applicant:

Eneos Corporation, Tokyo, JP;

Inventors:

Toshitaka Nakamura, Tokyo, JP;

Shinji Hasegawa, Tokyo, JP;

Mayuko Matsuoka, Tokyo, JP;

Assignee:

ENEOS CORPORATION, Tokyo, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Ellen M Mcavoy

Int. Cl.
CPC ...
C10M 133/16 (2006.01); C10M 101/00 (2006.01); C10M 105/06 (2006.01); C10M 169/04 (2006.01); C10N 10/04 (2006.01); C10N 30/02 (2006.01); C10N 40/00 (2006.01); C10N 40/04 (2006.01); C10N 40/25 (2006.01); C10N 60/14 (2006.01);
U.S. Cl.
CPC ...
C10M 133/16 (2013.01); C10M 101/00 (2013.01); C10M 105/06 (2013.01); C10M 169/04 (2013.01); C10M 2203/1025 (2013.01); C10M 2215/0806 (2013.01); C10M 2215/082 (2013.01); C10M 2219/106 (2013.01); C10M 2229/02 (2013.01); C10N 2010/04 (2013.01); C10N 2030/02 (2013.01); C10N 2040/04 (2013.01); C10N 2040/25 (2013.01); C10N 2040/292 (2025.05); C10N 2060/14 (2013.01);
Abstract

A lubricating oil additive composition including: (i) at least one first amide compound, and/or a salt thereof, the at least one first amide compound being a monoamide of at least one fatty acid (a1), and at least one amine compound (a2), the amine compound (a2) being an oligomer of at least one alkanolamine (a3) represented by the general formula (1); and (ii) at least one second amide compound having a structure such that an amino group and at least one hydroxy group of the alkanolamine (a3) are acylated with the fatty acid (a1): in the formula, n is 1 or 2; Ris C1-4 linear chain alkylene or C3-10 branched chain alkylene having a main chain, the main chain having a carbon number of 2; and when n is 2, a plurality of R's may be the same, and may be different from each other.

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