(19)

(11)

EP 2 831 212 A1

(12)

(43) Date of publication: 04.02.2015 Bulletin 2015/06 (21) Application number: 13712452.5 (22) Date of filing: 13.03.2013

(51) International Patent Classification (IPC):  C10M 159/24(2006.01) C10N 40/04(2006.01) C10N 30/06(2006.01) (86) International application number: PCT/US2013/030648 (87) International publication number: WO 2013/148171 (03.10.2013 Gazette 2013/40)

(84) Designated Contracting States: AL 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 RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 26.03.2012 US 201261615434 P (71) Applicant: The Lubrizol Corporation Wickliffe, OH 44092-2298 (US)	(72) Inventors: BROWN, Gareth Derby (GB) HUSTON, Michael E. Wickliffe, Ohio 44092-2298 (US) FRIEND, Christopher L. Wickliffe, Ohio 44092-2298 (US) WALKER, Gary M. Derby (GB) SEDDON, Elisa J. Cleveland, Ohio 44141-3247 (US) (74) Representative: Bateman, Rachel Elizabeth  D Young & Co LLP 120 Holborn London EC1N 2DY London EC1N 2DY (GB)