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:
Mar. 19, 1985
Filed:
Aug. 31, 1983
Rodney L Sung, Fishkill, NY (US);
Benjamin H Zoleski, Beacon, NY (US);
Sheldon Herbstman, Spring Valley, NY (US);
Peter Dorn, Lagrangeville, NY (US);
Texaco Inc., White Plains, NY (US);
Abstract
A lubricant composition includes a mineral lubricanting lubricant composition and a friction modifying amount of a reaction product of an amine and maleic anhydride represented by the formula: ##STR1## in which X and X' are either: ##STR2## in which R and R' can be any hydrocarbon radicals and the total number of carbon atoms in R plus R' varies from about 6 to about 30, and wherein the nitrogen is bound to a secondary carbon atom, or wherein R is a hydrogen atom and R' is a branched hydrocarbon radical having from about 6 to 30 carbon atoms, or ##STR3## in which Y varies from 2 to 6, and in which R' is a hydrocarbon radical having from about 6 to 30 carbon atoms, and R'' is hydrogen or a methyl radical. The lubricant composition finds use in various internal combustion engines including slow and medium speed diesel engines and as a lubricant in the upper cylinder of a slow speed marine diesel engine.