(19)

(11)

EP 1 315 787 A2

(12)

(88) Date of publication A3: 10.05.2002 (43) Date of publication: 04.06.2003 Bulletin 2003/23 (21) Application number: 01965187.6 (22) Date of filing: 10.08.2001

(51) International Patent Classification (IPC)7: C10M 137/10, C10M 141/10, C10M 169/04 (86) International application number: PCT/EP0109/262 (87) International publication number: WO 0201/8521 (07.03.2002 Gazette 2002/10)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR (30) Priority: 29.08.2000 GB 0021041 (71) Applicant: ExxonMobil Research and Engineering Company Annandale,New Jersey 08801 (US)	(72) Inventors: PACE, Stuart Oxford OX1 4TZ (GB) HAFEZ, Medi, M. Paulsboro, NJ 08066-0480 (US) KOSIDOWSKI, Maria-Laura Philadelphia, PA 19103 (US) BARBOUR, Robert Howie Ashbourne,Derbyshire DE6 1PW (GB) SCHILOWITZ, Alan, Mark Highland Park, NJ 08904 (US) (74) Representative: Troch, Geneviève et al ExxonMobil Chemical Europe Inc.,P.O. Box 105 1830 Machelen 1830 Machelen (BE)