(19)

(11)

EP 2 646 532 A1

(12)

(43) Date of publication: 09.10.2013 Bulletin 2013/41 (21) Application number: 11778631.9 (22) Date of filing: 04.11.2011

(51) International Patent Classification (IPC):  C11D 1/62(2006.01) C11D 3/20(2006.01) C11D 3/00(2006.01) C11D 3/50(2006.01) (86) International application number: PCT/EP2011/069414 (87) International publication number: WO 2012/072369 (07.06.2012 Gazette 2012/23)

(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: 03.12.2010 EP 10193695 (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: CLOWES, Elizabeth, Ann Wirral Merseyside CH63 3JW (GB) HUNTER, Robert, Allan Wirral Merseyside CH63 3JW (GB) PERRY, Janette Wirral Merseyside CH63 3JW (GB) (74) Representative: Chisem, Janet  Unilever Patent Group Colworth House Sharnbrook Bedford MK44 1LQ Sharnbrook Bedford MK44 1LQ (GB)