(19)

(11)

EP 2 057 256 A2

(12)

(88) Date of publication A3: 10.04.2008 (43) Date of publication: 13.05.2009 Bulletin 2009/20 (21) Application number: 07810518.6 (22) Date of filing: 17.07.2007

(51) International Patent Classification (IPC):  C10M 163/00(2006.01) C10N 30/02(2006.01) C10M 169/04(2006.01) (86) International application number: PCT/US2007/016168 (87) International publication number: WO 2008/016484 (07.02.2008 Gazette 2008/06)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (30) Priority: 28.07.2006 US 834075 P (71) Applicant: ExxonMobil Research and Engineering Company Annandale, NJ 08801-0900 (US)	(72) Inventor: POIRIER, Marc-Andre Sarnia, Ontario, N7W 1C1 (CA) (74) Representative: Troch, Geneviève  ExxonMobil Chemical Europe Inc. I.P. Law Shared Services P.O. Box 105 Hermeslaan 2 1831 Machelen 1831 Machelen (BE)