(19)

(11)

EP 1 689 833 A1

(12)

(43) Date of publication: 16.08.2006 Bulletin 2006/33 (21) Application number: 04779261.9 (22) Date of filing: 27.07.2004

(51) International Patent Classification (IPC):  C10G 45/12(2006.01) C10G 67/06(2006.01) C10G 45/64(2006.01) (86) International application number: PCT/US2004/024128 (87) International publication number: WO 2005/012459 (10.02.2005 Gazette 2005/06)

(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: 01.08.2003 US 492078 P (71) Applicant: ExxonMobil Research and Engineering Company Annandale, NJ 08801-0900 (US)	(72) Inventors: SHIH, Stuart, S. Baton Rouge, LA 70810 (US) ACHARYA, Madhav Vienna, VA 22182 (US) (74) Representative: Pols, Ronald Maarten  ExxonMobil Chemical Europe Inc., PO Box 105 1830 Machelen 1830 Machelen (BE)