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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 12215294 B1

PDFFull Text
Date of Patent:
Feb. 04, 2025

Filed:

Mar. 20, 2019

Lubricant composition

Applicant:

Basf SE, Ludwigshafen, DE;

Inventors:

Michael D. Hoey, Maplewood, NJ (US);

David Chasan, Teaneck, NJ (US);

Jeffrey Schoonmaker, Wallkill, NY (US);

Ryan Fenton, Norwalk, CT (US);

Assignee:

BASF SE, Ludwigshafen am Rhein, DE;

Attorney:

Baltazar Gomez

Primary Examiner:

Taiwo Oladapo

Int. Cl.
CPC ...
C10M 141/08 (2006.01); C10M 125/22 (2006.01); C10M 133/12 (2006.01); C10M 135/24 (2006.01); C10M 137/10 (2006.01); C10M 151/04 (2006.01); C10M 101/02 (2006.01); C10N 10/04 (2006.01); C10N 10/12 (2006.01); C10N 30/10 (2006.01); C10N 30/12 (2006.01); C10N 40/00 (2006.01); C10N 40/02 (2006.01); C10N 60/10 (2006.01);
U.S. Cl.
CPC ...
C10M 141/08 (2013.01); C10M 125/22 (2013.01); C10M 133/12 (2013.01); C10M 135/24 (2013.01); C10M 137/10 (2013.01); C10M 151/04 (2013.01); C10M 101/02 (2013.01); C10N 2010/04 (2013.01); C10N 2010/12 (2013.01); C10N 2030/10 (2013.01); C10N 2030/12 (2013.01); C10N 2040/02 (2013.01); C10N 2040/135 (2020.05); C10N 2060/10 (2013.01);
Abstract

Lubricant compositions comprising a base oil, one or more antioxidants selected from a group consisting of N-α-naphthyl-N-phenylamine antioxidants and diphenylamine antioxidants; and one or more sulfur-containing additives exhibit outstanding oxidative stability and non-corrosion properties. The N-α-naphthyl-N-phenylamine antioxidants plus diphenylamine antioxidants in total may be present from about 0.2 wt % to about 0.8 wt %, based on the total weight of the lubricant composition. The sulfur provided by the sulfur-containing additives, in total, may be present from about 50 ppm to about 1000 ppm by weight, based on the total weight of the lubricant composition.

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