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(11)

EP 2 385 977 A1

(12)

(43) Date of publication: 16.11.2011 Bulletin 2011/46 (21) Application number: 09737254.4 (22) Date of filing: 01.10.2009

(51) International Patent Classification (IPC):  C10L 1/188(2006.01) C10L 10/04(2006.01) C10L 10/00(2006.01) C10L 1/198(2006.01) C10L 1/14(2006.01) (86) International application number: PCT/US2009/059164 (87) International publication number: WO 2010/042378 (15.04.2010 Gazette 2010/15)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 10.10.2008 US 104304 P (71) Applicant: The Lubrizol Corporation Wickliffe, OH 44092-2298 (US)	(72) Inventors: BARBOUR, Robert H. Belper Derby DE56 1QN (GB) STEVENSON, Paul R. Belper Derby DE56 1QN (GB) FAHEY, Emma Belper Derby DE56 1QN (GB) (74) Representative: Bradley, Josephine Mary  D Young & Co LLP 120 Holborn GB-London EC1N 2DY GB-London EC1N 2DY (GB)