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EP 3 622 047 A1

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(43) Date of publication: 18.03.2020 Bulletin 2020/12 (21) Application number: 18715708.6 (22) Date of filing: 05.04.2018

(51) International Patent Classification (IPC):  C11D 1/37(2006.01) C11D 1/06(2006.01) C11D 1/29(2006.01) C11D 11/00(2006.01) C11D 1/83(2006.01) C11D 1/22(2006.01) C11D 17/00(2006.01) (86) International application number: PCT/EP2018/058783 (87) International publication number: WO 2018/206202 (15.11.2018 Gazette 2018/46)

(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 Designated Validation States: KH MA MD TN (30) Priority: 10.05.2017 EP 17170421 (71) Applicants: Unilever PLC, a company registered in England and Wales under company no. 41424 of 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: BATCHELOR, Stephen, Norman Bebington Wirral Merseyside CH63 3JW (GB) BIRD, Jayne, Michelle Bebington 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)