(19)

(11)

EP 1 373 456 A1

(12)

(43) Date of publication: 02.01.2004 Bulletin 2004/01 (21) Application number: 01997535.8 (22) Date of filing: 01.11.2001

(51) International Patent Classification (IPC)7: C11D 17/00, C11D 3/22 (86) International application number: PCT/EP2001/012893 (87) International publication number: WO 2002/042404 (30.05.2002 Gazette 2002/22)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 24.11.2000 EP 00204187 (71) Applicants: UNILEVER N.V. 3013 AL Rotterdam (NL) AT BE CH DE DK ES FI FR GR IT LI LU MC NL PT SE TR  UNILEVER PLC London EC4P 4BQ (GB) CY GB IE	(72) Inventors: BOSKAMP, Jelles V,Unilever Research Vlaardigen NL-3133 AT Vlaardingen (NL) CHOENNIE, Somdath,Unilever Research Vlaardingen NL-3133 AT Vlaardingen (NL) (74) Representative: Hodgetts, Catherine Dawn et al Unilever N.V.,Patent Department,Olivier van Noortlaan 120 3133 AT Vlaardingen 3133 AT Vlaardingen (NL)