(19)

(11)

EP 1 778 824 A1

(12)

(43) Date of publication: 02.05.2007 Bulletin 2007/18 (21) Application number: 05775264.4 (22) Date of filing: 22.07.2005

(51) International Patent Classification (IPC):  C10M 171/02(2006.01) C10M 167/00(2006.01) C10M 169/04(2006.01) C10M 163/00(2006.01) (86) International application number: PCT/US2005/026309 (87) International publication number: WO 2006/014866 (09.02.2006 Gazette 2006/06)

(84) Designated Contracting States: FR GB (30) Priority: 29.07.2004 US 592356 P 11.03.2005 US 660650 P (71) Applicant: The Lubrizol Corporation Wickliffe, Ohio 44092 (US)	(72) Inventors: LEAHY, Richard Hessle East Yorkshire HU13 0PT (GB) MAYHEW, Alexandra Belper Derby DE56 1QN (GB) BARNES, W. Preston Wickliffe, OH 44092 (US) COOK, Stephen J. Belper Derby DE56 1QN (GB) (74) Representative: Bradley, Josephine Mary  D Young & Co 120 Holborn London EC1N 2DY London EC1N 2DY (GB)