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(11)

EP 1 814 974 A1

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(43) Date of publication: 08.08.2007 Bulletin 2007/32 (21) Application number: 05790693.5 (22) Date of filing: 05.09.2005

(51) International Patent Classification (IPC):  C11D 3/40(2006.01) C11D 3/12(2006.01) C11D 17/06(2006.01) C11D 3/37(2006.01) (86) International application number: PCT/EP2005/009518 (87) International publication number: WO 2006/053598 (26.05.2006 Gazette 2006/21)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 22.11.2004 GB 0425580 (71) Applicants: Unilever PLC Blackfriars London Greater London EC4P 4BQ (GB) CY GB IE  Unilever Naamloze Vennootschap 3013 AL Rotterdam (NL) AT BE BG CH CZ DE DK EE ES FI FR GR HU IS IT LI LT LU LV MC NL

(72) Inventors: BATCHELOR, Stephen Norman, Unilever R & D Wirral Merseyside CH63 3JW (GB) BIRD, Jayne Michelle, Unilever R & D Wirral Merseyside CH63 3JW (GB) CHAPPLE, Andrew Paul, Unilever R & D Wirral Merseyside CH63 3JW (GB) GRAHAM, Peter, Unilever R & D Wirral Merseyside CH63 3JW (GB) QUADIR, Angela Hove, East Sussex BN3 7FL (GB) (74) Representative: Elliott, Peter William  Unilever plc Patent Division Colworth House Sharnbrook GB-Bedford MK44 1LQ GB-Bedford MK44 1LQ (GB)