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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 11674106 B1

PDFFull Text
Date of Patent:
Jun. 13, 2023

Filed:

Jul. 17, 2018

Low zinc lubricant composition

Applicant:

The Lubrizol Corporation, Wickliffe, OH (US);

Inventors:

Joanne L. Jones, Nottingham, GB;

Mark C. Davies, Pudong, CN;

Michael R. Sutton, Matlock, GB;

Patrick E. Mosier, Bay Village, OH (US);

Assignee:

The Lubrizol Corporation, Wickliffe, OH (US);

Attorneys:

Eryn Fuhrer

Michael Miller

Primary Examiner:

Vishal V Vasisth

Int. Cl.
CPC ...
C10M 169/04 (2006.01); C10M 101/00 (2006.01); C10M 125/24 (2006.01); C10M 129/52 (2006.01); C10M 133/04 (2006.01); C10M 133/16 (2006.01); C10N 30/00 (2006.01); C10N 40/25 (2006.01); C10N 10/02 (2006.01); C10N 10/04 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01); C10N 30/04 (2006.01); C10N 30/06 (2006.01); C10N 30/10 (2006.01); C10N 60/14 (2006.01);
U.S. Cl.
CPC ...
C10M 169/045 (2013.01); C10M 101/00 (2013.01); C10M 125/24 (2013.01); C10M 129/52 (2013.01); C10M 133/04 (2013.01); C10M 133/16 (2013.01); C10M 2207/262 (2013.01); C10M 2215/08 (2013.01); C10M 2215/086 (2013.01); C10M 2217/043 (2013.01); C10M 2219/046 (2013.01); C10M 2223/043 (2013.01); C10M 2223/045 (2013.01); C10M 2223/049 (2013.01); C10M 2223/06 (2013.01); C10N 2010/02 (2013.01); C10N 2010/04 (2013.01); C10N 2020/02 (2013.01); C10N 2020/04 (2013.01); C10N 2030/04 (2013.01); C10N 2030/06 (2013.01); C10N 2030/10 (2013.01); C10N 2030/36 (2020.05); C10N 2030/42 (2020.05); C10N 2030/45 (2020.05); C10N 2030/52 (2020.05); C10N 2040/253 (2020.05); C10N 2060/14 (2013.01);
Abstract

The disclosed technology relates to lubricants for compression ignition internal combustion engines, particularly those demonstrating at least one of improved seals performance, reduced deposit formation, and excellent durability. The present invention provides a low zinc lubricating composition comprising (a) an oil of lubricating viscosity, (b) a borated dispersant, and (c) a metal-free organo-phosphorus anti-wear additive, wherein the lubricating composition is substantially free of a metal containing sulfur coupled alkyl phenol compound. Further, the low zinc lubricating composition contains zinc in an amount less than 600 ppm by weight of the composition.

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