(19)

(11)

EP 1 069 938 A1

(12)

(43) Date of publication: 24.01.2001 Bulletin 2001/04 (21) Application number: 99914252.4 (22) Date of filing: 29.03.1999

(51) International Patent Classification (IPC)7: B01D 67/00, B01D 69/02, C08J 5/22, G01N 27/333 (86) International application number: PCT/US9906/832 (87) International publication number: WO 9951/330 (14.10.1999 Gazette 1999/41)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 06.04.1998 US 55895 (71) Applicant: Patko, Martin J. Orange, CA 92868 (US)	(72) Inventor: Patko, Martin J. Orange, CA 92868 (US) (74) Representative: Van Malderen, Joelle et al Office Van Malderen,Place Reine Fabiola 6/1 1083 Bruxelles 1083 Bruxelles (BE)