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.:
Date of Patent:
Jul. 28, 2015
Filed:
Mar. 02, 2012
Naresh Mathur, Midlothian, VA (US);
Jason A. Lagona, Richmond, VA (US);
John T. Loper, Richmond, VA (US);
Naresh Mathur, Midlothian, VA (US);
Jason A. Lagona, Richmond, VA (US);
John T. Loper, Richmond, VA (US);
Afton Chemical Corporation, Richmond, VA (US);
Abstract
An ashless additive for lubricating oil compositions, lubricating oil compositions and methods for lubricating that are effective to improve the total base number (TBN) of a lubricant composition. The additive is a reaction product of a compound of the formula: with NH, an alcohol, an amine, or a hydrocarbyl amine, wherein Ris selected from H, a hydrocarbyl group, the alcohol or amine contains from 1 to about 24 carbon atoms, and the hydrocarbyl amine has a number average molecular weight ranging from about 100 to about 6000.