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(11)

EP 2 643 384 A1

(12)

(43) Date of publication: 02.10.2013 Bulletin 2013/40 (21) Application number: 11791398.8 (22) Date of filing: 21.11.2011

(51) International Patent Classification (IPC):  C08G 63/91(2006.01) C10L 1/22(2006.01) C08G 69/44(2006.01) C10L 10/18(2006.01) (86) International application number: PCT/US2011/061620 (87) International publication number: WO 2012/071313 (31.05.2012 Gazette 2012/22)

(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 (30) Priority: 24.11.2010 US 416767 P (71) Applicant: The Lubrizol Corporation Wickliffe, OH 44092-2298 (US)	(72) Inventors: GREENFIELD, Hannah Belper Derby DE56 1QN (GB) THETFORD, Dean Blackley Manchester M9 8ZS (GB) JONES, Joanne Belper Derby DE56 1QN (GB) MORETON, David J. Belper Derby DE56 1QN (GB) (74) Representative: Mallalieu, Catherine Louise  D Young & Co LLP 120 Holborn London EC1N 2DY London EC1N 2DY (GB)