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. 25, 2014
Filed:
Oct. 31, 2006
Stanley James Cartwright, Sarnia, CA;
Stanley James Cartwright, Sarnia, CA;
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
The present invention is directed to a lubricating oil for use in engines subjected to sustained severe load conditions, said lubricating oil comprising a base oil, and an additive package comprising one or more neutral/low TBN or a mixture of neutral/low TBN, and overbased/high TBN alkali or alkaline earth metal alkyl sulfonates, alkyl phenates, alkyl salicylates, an antioxidant selected from the group consisting of glycerine derivatives comprising glycerine grafted with a hindered phenol, hindered phenolic containing a thioether group, and mixtures thereof, optionally an additional conventional antioxidant and/or an organomolybdenum compound, and other additives, and to a method for enhancing the deposit formation resistance of a lubricating oil used in engines operated under sustained severe load comprising the addition to the lubricant of the aforesaid additive package.