(19)

(11)

EP 2 591 083 A1

(12)

(43) Date of publication: 15.05.2013 Bulletin 2013/20 (21) Application number: 11729595.6 (22) Date of filing: 22.06.2011

(51) International Patent Classification (IPC):  C11D 17/00(2006.01) (86) International application number: PCT/EP2011/060521 (87) International publication number: WO 2012/004132 (12.01.2012 Gazette 2012/02)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 08.07.2010 GB 201011515 (71) Applicants: Unilever PLC London, Greater London EC4Y 0DY (GB) CY GB IE MT  Unilever NV 3013 AL Rotterdam (NL) AL AT BE BG CH CZ DE DK EE ES FI FR GR HR HU IS IT LI LT LU LV MC MK NL NO PL PT RO RS SE SI SK SM TR

(72) Inventors: BARNETT, Stuart, Anthony Wirral Merseyside CH63 3JW (GB) JONES, Craig, Warren Wirral Merseyside CH63 3JW (GB) PARKER, Andrew, Philip Wirral Merseyside CH63 3JW (GB) (74) Representative: Chisem, Janet  Unilever Patent Group Colworth House Sharnbrook Bedford MK44 1LQ Sharnbrook Bedford MK44 1LQ (GB)