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:
Apr. 12, 2011
Filed:
Jul. 03, 2007
James Christian Dodd, Didcot, GB;
Frederick Wein Girshick, Scotch Plains, NJ (US);
Michael Dennis Hoey, Maplewood, NJ (US);
Jeremy Roger Spencer, Didcot, GB;
Jacob Emert, Brooklyn, NY (US);
Tushar Kanti Bera, Franklin Park, NJ (US);
James Christian Dodd, Didcot, GB;
Frederick Wein Girshick, Scotch Plains, NJ (US);
Michael Dennis Hoey, Maplewood, NJ (US);
Jeremy Roger Spencer, Didcot, GB;
Jacob Emert, Brooklyn, NY (US);
Tushar kanti Bera, Franklin Park, NJ (US);
Abstract
A lubricating oil composition having a total base number of more than 15 mg KOH/g including oil of lubricating viscosity; detergent; and at least one compound of the formula (I) and/or formula (II): wherein Ar and Ar' represent substituted or unsubstituted aromatic moieties; L and L′ are linking moieties; each Y is independently —ORor H(O(CR))X—, wherein X is (CR), O or S; Rand Rare H, alkyl or aryl; Ris alkyl or aryl; each Y′ is independently Z(O(CR))X′—, wherein X′ is (CR), O or S; Rand Rare H, alkyl or aryl; Z is H, acyl, alkyl or aryl; z and z′ are 1 to 10; n is 0 to 10 when X is (CR)and 2 to 10 when X is O or S; n′ is 0 to 10 when X′ is (CR), and 2 to 10 when X′ is O or S; y and y′ are 1 to 30; a and a′ are 0 to 3; and m and m′ are 1 to 100, with the proviso that in compounds of formula (I), at least one Ar moiety bears at least one group Y and that in compounds of formula (II), at least one Ar′ moiety bears at least one group Y′ in wherein Z is not H.