(19)

(11)

EP 1 137 828 A1

(12)

(43) Date of publication: 04.10.2001 Bulletin 2001/40 (21) Application number: 99907960.1 (22) Date of filing: 24.02.1999

(51) International Patent Classification (IPC)7: D01F 6/04 (86) International application number: PCT/NL9900/099 (87) International publication number: WO 0024/952 (04.05.2000 Gazette 2000/18)

(84) Designated Contracting States: BE DE ES FR GB IT NL (30) Priority: 28.10.1998 NL 1010413 (71) Applicant: DSM N.V. 6411 TE Heerlen (NL)	(72) Inventors: SIMMELINK, Joseph, Arnold, Paul, Maria NL-6137 AH Sittard (NL) MENCKE, Jacobus, Johannes NL-6226 AV Maastricht (NL) (74) Representative: Mooij, Johannes Jacobus et al DSM Patents & TrademarksOffice GeleenP.O. Box 9 6160 MA Geleen 6160 MA Geleen (NL)