(19)

(11)

EP 0 779 916 A1

(12)

(43) Date of publication: 25.06.1997 Bulletin 1997/26 (21) Application number: 95932000.0 (22) Date of filing: 04.09.1995

(51) International Patent Classification (IPC):  C10G 9/ 02( . ) C10G 69/ 06( . ) C10G 47/ 22( . ) (86) International application number: PCT/EP1995/003504 (87) International publication number: WO 1996/007716 (14.03.1996 Gazette 1996/12)

(84) Designated Contracting States: BE CH DE DK FR GB IT LI NL SE (30) Priority: 05.09.1994 EP 19940202527 (71) Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. 2596 HR Den Haag (NL)	(72) Inventors: OUDSHOORN, Cornelis, Adrianus, Maria NL-1031 CM Amsterdam (NL) PEFEROEN, Danny, Gaston, Rene NL-1031 CM Amsterdam (NL)