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(11)

EP 2 841 551 A1

(12)

(43) Date of publication: 04.03.2015 Bulletin 2015/10 (21) Application number: 13710406.3 (22) Date of filing: 19.03.2013

(51) International Patent Classification (IPC):  C11D 3/382(2006.01) C11D 3/37(2006.01) (86) International application number: PCT/EP2013/055649 (87) International publication number: WO 2013/160024 (31.10.2013 Gazette 2013/44)

(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 Designated Extension States: BA ME (30) Priority: 23.04.2012 EP 12165196 (71) Applicants: Unilever Plc. London, Greater London EC4Y 0DY (GB) CY GB IE MT  Unilever N.V. 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: BRENNAN, Lee, James Bebington Wirral Merseyside CH63 3JW (GB) KOWALSKI, Adam, Jan Bebington Wirral Merseyside CH63 3JW (GB) RYAN, Philip, Michael Bebington Wirral Merseyside CH63 3JW (GB) SANDERSON, Alastair, Richard Bebington Wirral Merseyside CH63 3JW (GB) WAGLE, Ami, Swapnil Bebington Wirral Merseyside CH63 3JW (GB) (74) Representative: Newbould, Frazer Anthony  Unilever PLC Unilever Patent Group Colworth House Sharnbrook Bedford, Bedfordshire MK44 1LQ Colworth House Sharnbrook Bedford, Bedfordshire MK44 1LQ (GB)