(19)

(11)

EP 1 246 893 A2

(12)

(88) Date of publication A3: 13.12.2001 (43) Date of publication: 09.10.2002 Bulletin 2002/41 (21) Application number: 00990759.3 (22) Date of filing: 14.12.2000

(51) International Patent Classification (IPC)7: C10L 1/00 (86) International application number: PCT/EP0012/756 (87) International publication number: WO 0104/4411 (21.06.2001 Gazette 2001/25)

(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: 16.12.1999 GB 9929805 (71) Applicant: ExxonMobil Research and Engineering Company Annandale,New Jersey 08801 (US)	(72) Inventors: BARBOUR, Robert Howie Ashbourne,Derby DE6 3FR (GB) BERLOWITZ, Paul, J. Glen Garnder, NJ 08826 (US) RICKEARD, David John,Patents & Licences Leatherhead,Surrey KT2 2 8XE (GB) SCHILOWITZ, Alan Mark,Patents and Licences Leatherhead,Surrey KT22 8XE (GB) (74) Representative: Troch, Geneviève et al ExxonMobil Chemical Europe Inc.,P.O. Box 105 1830 Machelen 1830 Machelen (BE)