(19)

(11)

EP 1 242 316 A1

(12)

(43) Date of publication: 25.09.2002 Bulletin 2002/39 (21) Application number: 00970398.4 (22) Date of filing: 05.10.2000

(51) International Patent Classification (IPC)7: C02F 1/56, C02F 11/14 (86) International application number: PCT/SE0001/922 (87) International publication number: WO 0102/5156 (12.04.2001 Gazette 2001/15)

(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: 06.10.1999 SE 9903594 (71) Applicant: Kemira Kemi AB 251 09 Helsingborg (SE)	(72) Inventors: BISBAL TUDELA, Josep, Lluis E-08190 Sant Cugat Del Vallés (ES) CRESTA, Franz I-21040 Carnago-Varese (IT) CELLI, Enrico I-00149 Roma (IT) (74) Representative: Wiklund, Erik  AWAPATENT AB,Box 5117 200 71 Malmö 200 71 Malmö (SE)