(19)

(11)

EP 2 566 940 A1

(12)

(43) Date of publication: 13.03.2013 Bulletin 2013/11 (21) Application number: 11718352.5 (22) Date of filing: 03.05.2011

(51) International Patent Classification (IPC):  C10M 107/02(2006.01) C10N 40/25(2006.01) C10M 143/00(2006.01) (86) International application number: PCT/EP2011/057033 (87) International publication number: WO 2011/138313 (10.11.2011 Gazette 2011/45)

(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: 03.05.2010 EP 10161713 (71) Applicant: Shell Internationale Research Maatschappij B.V. 2596 HR The Hague (NL)	(72) Inventors: HAYES, Howard, Richard Chester Cheshire CH2 4NU (GB) SMITHERS, Janet, Marian Chester Cheshire CH2 4NU (GB) WEDLOCK, David, John Chester Cheshire CH2 4NU (GB) (74) Representative: Matthezing, Robert Maarten et al Shell International B.V. Intellectual Property Services P.O. Box 384 2501 CJ The Hague 2501 CJ The Hague (NL)