(19)

(11)

EP 1 128 900 A2

(12)

(88) Date of publication A3: 13.04.2001 (43) Date of publication: 05.09.2001 Bulletin 2001/36 (21) Application number: 99949464.4 (22) Date of filing: 07.10.1999

(51) International Patent Classification (IPC)7: B01D 71/02, B22F 3/11 (86) International application number: PCT/NL9900/623 (87) International publication number: WO 0020/106 (13.04.2000 Gazette 2000/15)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 07.10.1998 NL 1010267 (71) Applicants: Universiteit Utrecht 3584 CS Utrecht (NL) U-Cat B.V. 3527 GA Utrecht (NL)	(72) Inventors: GEUS, John, Wilhelm NL-3723 GJ Bilthoven (NL) KOCK, Adrianus, Gijsbert NL-3522 AS Utrecht (NL) VAN DILLEN, Adrianus, Jacobus NL-4102 AB Culemborg (NL) KERKHOFFS, Maria, Johanna, Henrica, Virginie NL-3454 SK De Meern (NL) (74) Representative: Prins, Adrianus Willem et al Vereenigde,Nieuwe Parklaan 97 2587 BN Den Haag 2587 BN Den Haag (NL)