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(11)

EP 1 648 985 A1

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(43) Date of publication: 26.04.2006 Bulletin 2006/17 (21) Application number: 04777253.8 (22) Date of filing: 29.06.2004

(51) International Patent Classification (IPC):  C10M 157/10(1985.01) (86) International application number: PCT/US2004/020856 (87) International publication number: WO 2005/010134 (03.02.2005 Gazette 2005/05)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 16.07.2003 US 621154 (71) Applicant: The Lubrizol Corporation Wickliffe, Ohio 44092 (US)	(72) Inventors: SUMIEJSKI, James L. Mentor, Ohio 44060 (US) SMOGGIE, John C. Lyndhurst, Ohio 44124 (US) TIPTON, Craig Perry, Ohio 44081 (US) (74) Representative: Weber, Thomas et al Patentanwälte von Kreisler-Selting-Werner, Bahnhofsvorplatz 1 (Deichmannhaus) 50667 Köln 50667 Köln (DE)