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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 11926804 B1

PDFFull Text
Date of Patent:
Mar. 12, 2024

Filed:

Jan. 31, 2023

Dispersant and detergent systems for improved motor oil performance

Applicant:

Afton Chemical Corporation, Richmond, VA (US);

Inventors:

Leah Donham, Henrico, VA (US);

Kongsheng Yang, Glen Allen, VA (US);

Kenneth Garelick, Mechanicsville, VA (US);

Kristi Engelman, Richmond, VA (US);

Assignee:

Afton Chemical Corporation, Richmond, VA (US);

Attorney:

Honigman LLP

Primary Examiner:

Vishal V Vasisth

Int. Cl.
CPC ...
C10M 169/04 (2006.01); C10M 135/10 (2006.01); C10M 137/10 (2006.01); C10M 141/10 (2006.01); C10M 149/10 (2006.01); C10M 155/00 (2006.01); C10M 157/10 (2006.01); C10N 30/00 (2006.01); C10N 30/04 (2006.01); C10N 30/06 (2006.01); C10N 30/10 (2006.01); C10N 40/25 (2006.01);
U.S. Cl.
CPC ...
C10M 169/041 (2013.01); C10M 135/10 (2013.01); C10M 137/10 (2013.01); C10M 141/10 (2013.01); C10M 149/10 (2013.01); C10M 155/00 (2013.01); C10M 157/10 (2013.01); C10M 2203/003 (2013.01); C10M 2217/028 (2013.01); C10M 2219/046 (2013.01); C10M 2223/045 (2013.01); C10M 2229/00 (2013.01); C10N 2030/041 (2020.05); C10N 2030/06 (2013.01); C10N 2030/10 (2013.01); C10N 2030/52 (2020.05); C10N 2030/68 (2020.05); C10N 2040/25 (2013.01);
Abstract

The present disclosure relates to passenger car motor oil lubricating oil compositions having select dispersant and detergent systems to improve at least one of deposits, sludge, oxidization, and wear when using a blend of API Group II base oils with one or more API Group III and/or API Group IV base oils. The dispersant systems herein includes select amounts of boron, nitrogen, and total base number contributions that surprisingly achieve performance even when including higher amounts of the API Group II base oils in the lubricants.

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