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:
May. 19, 1992
Filed:
Mar. 27, 1989
Applicant:
Inventors:
Steven Kennedy, Naperville, IL (US);
David W Eggerding, Naperville, IL (US);
Lionel D Moore, Lisle, IL (US);
Assignee:
Amoco Corporation, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 / ;
Abstract
A lubricating oil composition which includes partial esters of glycerol substantially free from glycerol are disclosed. The partial esters of glycerol are present in an amount of about 0.05 to about one percent by weight, and include less than about 1 weight percent of unreacted glycerol based on the total weight of glycerol esters and free glycerol present. Enhanced reduction in friction and improved stability are obtained.