(19)

(11)

EP 1 244 765 A1

(12)

(43) Date of publication: 02.10.2002 Bulletin 2002/40 (21) Application number: 00989891.7 (22) Date of filing: 24.11.2000

(51) International Patent Classification (IPC)7: C11D 3/33, C11D 3/37, C11D 3/20 (86) International application number: PCT/EP0011/793 (87) International publication number: WO 0104/6371 (28.06.2001 Gazette 2001/26)

(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: 21.12.1999 GB 9930240 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) CY GB  UNILEVER N.V. 3013 AL Rotterdam (NL) AT BE CH DE DK ES FI FR GR IE IT LU MC NL PT SE TR	(72) Inventors: TYNAN, MatthewUnilever Research Port Sunlight Wirral, Merseyside CH63 3JW (GB) WESTWELL,Jeremy,RobertUnilever Res.Port Sunlight Wirral, Merseyside CH63 3JW (GB) (74) Representative: Fransella, Mary Evelyn  Unilever PLCPatent DivisionColworth HouseSharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)