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:
Sep. 01, 1992
Filed:
Jan. 17, 1991
Applicant:
Inventors:
Elaine M Quinga, Batavia, IL (US);
Luke A Schaap, South Holland, IL (US);
Assignee:
Amoco Corporation, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 33 ; 252 39 ; 252 464 ; 252 47 ; 252 50 ;
Abstract
An engine and lubricating oil having superior anti-wear properties without necessitating use of phosphorus-containing anti-wear additives is provided which is particularly useful in automotive, industrial, and gear lubricants. The anti-wear engine and lubricating oil comprises an anti-wear component including benzotriazole or the reaction product of benoztriazole, combined with a formaldehyde-containing component and at least one primary or secondary aliphatic amine, a sulfur-containg compound, a metallic component, and a lubricating base oil.