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.

Date of Patent:
Jun. 02, 2020

Filed:

Jun. 08, 2015
Applicant:

The Lubrizol Corporation, Wickliffe, OH (US);

Inventors:

David M. Hobson, Cauldon, GB;

Michael R. Kohut, Belper, GB;

Stephen J. Gotheridge, Belper, GB;

Assignee:

The Lubrizol Corporation, Wickliffe, OH (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10M 129/06 (2006.01); C10M 169/04 (2006.01); C10M 127/04 (2006.01); C10M 129/68 (2006.01); C10M 143/06 (2006.01);
U.S. Cl.
CPC ...
C10M 129/06 (2013.01); C10M 127/04 (2013.01); C10M 129/68 (2013.01); C10M 143/06 (2013.01); C10M 169/04 (2013.01); C10M 2203/06 (2013.01); C10M 2205/026 (2013.01); C10M 2205/0285 (2013.01); C10M 2207/021 (2013.01); C10M 2207/0215 (2013.01); C10M 2207/28 (2013.01); C10M 2207/2805 (2013.01); C10N 2220/02 (2013.01); C10N 2220/022 (2013.01); C10N 2220/028 (2013.01); C10N 2230/36 (2013.01); C10N 2240/04 (2013.01); C10N 2240/08 (2013.01);
Abstract

The invention relates to industrial gear oil compositions that have been specially designed to have improved storage stability and/or paint compatibility and/or seal compatibility. This improvement is achieved while maintaining good performance in other areas. These improvements are particularly relevant to synthetic lubricants, such as those made with polyalphaolefin (PAO) base oils. This balance of properties has been difficult to achieve in synthetic compositions where problems in the areas of storage stability, paint compatibility and/or seal compatibility of become more pronounced. The invention also relates to processes of making such compositions and methods of using the same.


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