(19)

(11)

EP 1 299 509 A2

(12)

(88) Date of publication A3: 11.04.2002 (43) Date of publication: 09.04.2003 Bulletin 2003/15 (21) Application number: 01949345.1 (22) Date of filing: 17.05.2001

(51) International Patent Classification (IPC)7: C10M 141/06 (86) International application number: PCT/EP0105/656 (87) International publication number: WO 0108/8067 (22.11.2001 Gazette 2001/47)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 17.05.2000 GB 0011931 (71) Applicant: ExxonMobil Research and Engineering Company Annandale,New Jersey 08801 (US)	(72) Inventor: STEIGERWALD, Edgar, Andreas Hamburg (DE) (74) Representative: Troch, Geneviève et al ExxonMobil Chemical Europe Inc.,P.O. Box 105 1830 Machelen 1830 Machelen (BE)