(19)

(11)

EP 1 287 107 A1

(12)

(43) Date of publication: 05.03.2003 Bulletin 2003/10 (21) Application number: 01933912.6 (22) Date of filing: 01.05.2001

(51) International Patent Classification (IPC)7: C11D 17/00, C11D 3/06, C11D 3/20, C11D 1/02 (86) International application number: PCT/EP0104/877 (87) International publication number: WO 0109/4522 (13.12.2001 Gazette 2001/50)

(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: 02.06.2000 EP 00304700 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) CY GB IE  UNILEVER N.V. 3013 AL Rotterdam (NL) AT BE CH LI DE DK ES FI FR GR IT LU MC NL PT SE TR	(72) Inventor: TOMLINSON, Alan, D.Unilever Research Vlaardingen NL-3133 AT Vlaardingen (NL) (74) Representative: Boerma, Caroline  Unilever N.V.,Patent Department,Olivier van Noortlaan 120 3133 AT Vlaardingen 3133 AT Vlaardingen (GB)