(19)
(11) EP 2 089 496 A1

(12)

(43) Date of publication:
19.08.2009 Bulletin 2009/34

(21) Application number: 07854768.4

(22) Date of filing: 27.11.2007
(51) International Patent Classification (IPC): 
C10M 129/74(2006.01)
C10M 129/76(2006.01)
(86) International application number:
PCT/US2007/085547
(87) International publication number:
WO 2008/067259 (05.06.2008 Gazette 2008/23)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

(30) Priority: 28.11.2006 US 867402 P

(71) Applicant: The Lubrizol Corporation
Wickliffe OH 44092-2298 (US)

(72) Inventors:
  • KOCSIS, Jody A.
    Wickliffe, Ohio 44092-2298 (US)
  • VILARDO, Jonathan S.
    Wickliffe, Ohio 44092-2298 (US)
  • BROWN, Jason R.
    Katy, Texas 77449 (US)
  • BARRER, Daniel E.
    Richmond Hts., Ohio 44143 (US)
  • VICKERMAN, Richard J.
    Wickliffe, Ohio 44092-2298 (US)
  • MOSIER, Patrick E.
    Wickliffe, Ohio 44092-2298 (US)

(74) Representative: Bradley, Josephine Mary et al
D Young & Co
120 Holborn London EC1N 2DY
120 Holborn London EC1N 2DY (GB)

   


(54) TARTARIC ACID DERIVATIVES AS FUEL ECONOMY IMPROVERS AND ANTIWEAR AGENTS IN CRANKCASE OILS AND PREPARATION THEREOF