(19)

(11)

EP 1 633 833 A1

(12)

(43) Date of publication: 15.03.2006 Bulletin 2006/11 (21) Application number: 04754761.7 (22) Date of filing: 04.06.2004

(51) International Patent Classification (IPC):  C10G 67/04(1980.01) C10G 21/00(1968.09) C10G 45/58(1980.01) (86) International application number: PCT/US2004/018243 (87) International publication number: WO 2005/001001 (06.01.2005 Gazette 2005/01)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 06.06.2003 US 476665 P (71) Applicant: ExxonMobil Research and Engineering Company Annandale, NJ 08801-0900 (US)	(72) Inventor: BOUCHER ASHE, Heather, A. Point Edward, Ontario N7V 4K1 (CA) (74) Representative: Pols, Ronald Maarten et al ExxonMobil Chemical Europe Inc., PO Box 105 1830 Machelen 1830 Machelen (BE)