(19)

(11)

EP 1 725 638 A1

(12)

(43) Date of publication: 29.11.2006 Bulletin 2006/48 (21) Application number: 05728176.8 (22) Date of filing: 14.03.2005

(51) International Patent Classification (IPC):  C10M 145/16(2006.01) C10N 50/10(2006.01) (86) International application number: PCT/US2005/008335 (87) International publication number: WO 2005/090531 (29.09.2005 Gazette 2005/39)

(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 MC NL PL PT RO SE SI SK TR (30) Priority: 19.03.2004 US 805055 (71) Applicant: The Lubrizol Corporation Wickliffe, Ohio 44092-2298 (US)	(72) Inventors: SIVIK, Matthew, R. Broadview Hts., Ohio 44147 (US) TWINING, Steven, R. Rocky River, Ohio 441116 (US) (74) Representative: Weber, Thomas  Patentanwälte von Kreisler-Selting-Werner, Deichmannhaus am Dom, Bahnhofsvorplatz 1 50667 Köln 50667 Köln (DE)