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:
Aug. 24, 2010
Filed:
Aug. 08, 2006
James C. Dodd, Didcot, GB;
Fredrick W. Girshick, Scotch Plains, NJ (US);
Michael D. Hoey, Maplewood, NJ (US);
Jeremy R. Spencer, Didcot, GB;
James C. Dodd, Didcot, GB;
Fredrick W. Girshick, Scotch Plains, NJ (US);
Michael D. Hoey, Maplewood, NJ (US);
Jeremy R. Spencer, Didcot, GB;
Abstract
A lubricating oil composition having a total base number of more than 15 mg KOH/g, as determined by ASTM D2896, and including at least 40 mass % of an oil of lubricating viscosity; at least one detergent; and at least one compound of the formula (II): In formula (II), each Ar independently represents an aromatic moiety having 0 to 3 substituents selected from the group consisting of alkyl, alkoxy, alkoxyalkyl, hydroxy, hydroxyalkyl, acyloxy, acyloxyalkyl, aryloxy, aryloxy alkyl, halo and combinations thereof; each L is independently a linking moiety comprising a carbon-carbon single bond or a linking group; each Y' is independently a moiety of the formula Z(O(CR))X—, wherein X is selected from the group consisting of (CR′), O and S; R and R′ are each independently selected from H, Cto Calkyl and aryl; z is 1 to 10; n is 0 to 10 when X is (CR′), and 2 to 10 when X is O or S; y is 1 to 30; Z is H, an acyl group, an alkyl group or an aryl group; each a is independently 0 to 3, with the proviso that at least one Ar moiety bears at least one group Y′ in which Z is not H; and m is 1 to 100.