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(11)

EP 1 285 045 A1

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(43) Date of publication: 26.02.2003 Bulletin 2003/09 (21) Application number: 00932495.5 (22) Date of filing: 15.05.2000

(51) International Patent Classification (IPC)7: C10G 31/08, C10G 67/04, C10G 21/00 (86) International application number: PCT/US0013/454 (87) International publication number: WO 0108/8063 (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 Designated Extension States: AL LT LV MK RO SI (71) Applicant: TEXACO DEVELOPMENT CORPORATION White Plains,New York 10650 (US)	(72) Inventors: WALLACE, Paul, S. Katy, TX 77450 (US) JOHNSON, Kay, A. Missouri City, TX 77459 (US) KASBAUM, Janice, L. Seabrook, TX 77586 (US) NICCUM, Jacquelyn, G. Houston, TX 77005 (US) (74) Representative: Eddowes, Simon et al Urquhart-Dykes & Lord,30 Welbeck Street London W1G 8ER London W1G 8ER (GB)