(19)

(11)

EP 1 003 789 A1

(12)

(43) Date of publication: 31.05.2000 Bulletin 2000/22 (21) Application number: 98937870.8 (22) Date of filing: 30.07.1998

(51) International Patent Classification (IPC)7: C08F 2/50, C08G 83/00 (86) International application number: PCT/NL9800/439 (87) International publication number: WO 9907/746 (18.02.1999 Gazette 1999/07)

(84) Designated Contracting States: BE CH DE ES FI FR GB IT LI NL SE (30) Priority: 11.08.1997 NL 1006761 (71) Applicant: DSM N.V. 6411 TE Heerlen (NL)	(72) Inventors: DIAS, Aylvin, Jorge, Angelo, Athanasius NL-6221 JD Maastricht (NL) JANSEN, Johan, Franz, Gradus, Antonius NL-6165 AP Geleen (NL) (74) Representative: den Hartog, Jeroen H.J.  DSM Patents & TrademarksOffice GeleenP.O. Box 9 6160 MA Geleen 6160 MA Geleen (NL)