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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 10975323 B1

PDFFull Text
Date of Patent:
Apr. 13, 2021

Filed:

Dec. 07, 2016

Sulfurized catecholate detergents for lubricating compositions

Applicant:

The Lubrizol Corporation, Wickliffe, OH (US);

Inventors:

Kamalakumari K. Salem, Wickliffe, OH (US);

Gary M. Walker, Hazelwood, GB;

Ewan E. Delbridge, Wickliffe, OH (US);

David J. Moreton, Hazelwood, GB;

Adam Cox, Wickliffe, OH (US);

W. Preston Barnes, Concord, OH (US);

James P. Roski, Wickliffe, OH (US);

Mohamed G. Fahmy, Wickliffe, OH (US);

Assignee:

THE LUBRIZOL CORPORATION, Wickliffe, OH (US);

Attorneys:

Christopher P. Demas

Teresan W. Gilbert

Primary Examiner:

Vishal V Vasisth

Int. Cl.
CPC ...
C10M 135/30 (2006.01); C10M 101/00 (2006.01); C10M 107/00 (2006.01); C10N 30/04 (2006.01); C10N 30/00 (2006.01); C10N 20/02 (2006.01); C10N 30/06 (2006.01); C10N 30/10 (2006.01); C10N 30/12 (2006.01); C10N 40/04 (2006.01); C10N 40/25 (2006.01); C10N 60/10 (2006.01); C10N 70/00 (2006.01);
U.S. Cl.
CPC ...
C10M 135/30 (2013.01); C10M 101/00 (2013.01); C10M 107/00 (2013.01); C10M 2207/026 (2013.01); C10M 2207/262 (2013.01); C10M 2219/06 (2013.01); C10N 2020/02 (2013.01); C10N 2030/041 (2020.05); C10N 2030/06 (2013.01); C10N 2030/10 (2013.01); C10N 2030/12 (2013.01); C10N 2030/26 (2020.05); C10N 2040/04 (2013.01); C10N 2040/25 (2013.01); C10N 2060/10 (2013.01); C10N 2070/00 (2013.01);
Abstract

A lubricating composition includes a sulfurized oxy-substituted aromatic polyol compound and an oil of lubricating viscosity. The sulfurized oxy-substituted aromatic polyol compound includes at least one of a sulfurized oxy-substituted aromatic polyol and a salt of a sulfurized oxy-substituted aromatic polyol. The compound is suitable as a replacement for detergents that contain Calkyl phenols derived from oligomers of propylene.

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