(19)

(11)

EP 1 045 824 A1

(12)

(43) Date of publication: 25.10.2000 Bulletin 2000/43 (21) Application number: 98965822.4 (22) Date of filing: 14.12.1998

(51) International Patent Classification (IPC)7: C07C 51/265, C07C 63/26 (86) International application number: PCT/EP9808/134 (87) International publication number: WO 9931/038 (24.06.1999 Gazette 1999/25)

(84) Designated Contracting States: BE CH DE ES FR GB IT LI NL (30) Priority: 15.12.1997 US 69441 P (71) Applicant: SHELL INTERNATIONALE RESEARCHMAATSCHAPPIJ B.V. 2596 HR Den Haag (NL)	(72) Inventors: EDWARDS, Charles, Lee Houston, TX 77077 (US) JUNE, Raymond, Lawrence Houston, TX 77079 (US) POTTER, Michael, Wayne Sugar Land, TX 77478 (US) SIMPSON, Edward, James Houston, TX 77008 (US)