(19)

(11)

EP 1 254 205 A1

(12)

(43) Date of publication: 06.11.2002 Bulletin 2002/45 (21) Application number: 01909668.4 (22) Date of filing: 22.01.2001

(51) International Patent Classification (IPC)7: C11D 3/37 (86) International application number: PCT/EP0100/640 (87) International publication number: WO 0105/9053 (16.08.2001 Gazette 2001/33)

(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: 09.02.2000 GB 0002964 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) CY GB IE  UNILEVER N.V. 3013 AL Rotterdam (NL) AT BE CH DE DK ES FI FR GR IT LU MC NL PT SE TR LI	(72) Inventor: PARKER, Andrew, Philip,Unilever Research Wirral,Merseyside CH63 3JW (GB) (74) Representative: Elliott, Peter William et al Unilever PLCPatent Department,Colworth HouseSharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)