continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6863/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :11/08/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "NITROGEN-CONTAINING DISPERSANT AS AN ASHLESS TBN BOOSTER FOR LUBRICANTS"
(51) International classification :C10M 133/56 (71)Name of Applicant :
(31) Priority Document No :60/777,141
1)THE LUBRIZOL CORPORATION
(32) Priority Date :27/02/2006
Address of Applicant :29400 LAKELAND BOULEVARD,
(33) Name of priority country :U.S.A.
WICKLIFFE, OHIO 44092, U.S.A. U.S.A.
(86) International Application No :PCT/US2007/062631 (72)Name of Inventor :
Filing Date
:23/02/2007
1)EWA BARDASZ
(87) International Publication No :WO 2007/117776 2)VIRGINIA A. CARRICK
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
3)JOHN K. PUDELSKI
4)RENEE A. EVELAND
5)DOUGLAS M.BARR
(62) Divisional to Application Number :NA
6)MATTHEW D. GIESELMAN
Filing Date
:NA
(57) Abstract :
Lubricant compositions comprising (a) an oil of lubricating viscosity; and (b) at least one non-metal-containing additive, comprising a
nitrogen-containing dispersant having a total base number of at least about 90 are useful for lubricating an internal combustion engine.
The lubricants have less than 1.0% sulfated ash and a total base number of at least about 8.5, and at least 30% of the total base number
of the composition is provided by non-metal-containing additives. The lubricants exhibit a high TBN without deterioration of
elastomeric seals.
No. of Pages : 25 No. of Claims : 15
The Patent Office Journal 24/10/2008 26279