(19)

(11)

EP 1 606 238 A1

(12)

(43) Date of publication: 21.12.2005 Bulletin 2005/51 (21) Application number: 03781563.6 (22) Date of filing: 30.10.2003

(51) International Patent Classification (IPC)7: C07C 29/141, C07C 31/20 (86) International application number: PCT/US2003/034581 (87) International publication number: WO 2004/041759 (21.05.2004 Gazette 2004/21)

(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 PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 01.11.2002 US 423140 P 01.11.2002 US 423097 P 01.10.2003 US 676796 (71) Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. 2596 HR Den Haag (NL)	(72) Inventors: BLACKBOURN, Robert, Lawrence Houston, TX 77095 (US) BREWER, Stephen, Edward Houston, TX 77084 (US) DIAZ, Zaida Houston, TX 77077 (US) KOMPLIN, Glenn, Charles Katy, TX 77494 (US) POWELL, Joseph, Broun Houston, TX 77070 (US) WEIDER, Paul, Richard Houston, TX 77083 (US)