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(11)

EP 2 922 937 A1

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(43) Date of publication: 30.09.2015 Bulletin 2015/40 (21) Application number: 13771488.7 (22) Date of filing: 02.10.2013

(51) International Patent Classification (IPC):  C11D 1/83(2006.01) C11D 3/37(2006.01) C11D 1/94(2006.01) (86) International application number: PCT/EP2013/070527 (87) International publication number: WO 2014/079622 (30.05.2014 Gazette 2014/22)

(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: 20.11.2012 EP 12193351 (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: BARNES, Andrew, Anthony, Howard Wirral Merseyside CH63 3JW (GB) BURNHAM, Neil, Stephen Wirral Merseyside CH63 3JW (GB) CROSSMAN, Martin, Charles Wirral Merseyside CH63 3JW (GB) (74) Representative: McHugh, Paul Edward  Unilever PLC Unilever Patent Group Colworth House Sharnbrook Bedford Bedfordshire MK44 1LQ Bedford Bedfordshire MK44 1LQ (GB)