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EP 3 775 121 A1

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(43) Date of publication: 17.02.2021 Bulletin 2021/07 (21) Application number: 19709506.0 (22) Date of filing: 13.03.2019

(51) International Patent Classification (IPC):  C11D 1/06(2006.01) C11D 3/12(2006.01) C11D 3/40(2006.01) C11D 17/06(2006.01) C11D 3/10(2006.01) C11D 3/37(2006.01) C11D 11/00(2006.01) (86) International application number: PCT/EP2019/056233 (87) International publication number: WO 2019/192813 (10.10.2019 Gazette 2019/41)

(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: 03.04.2018 EP 18165379 (71) Applicants: 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  Unilever PLC London Greater London EC4Y 0DY (GB) CY GB IE MT

(72) Inventors: BATCHELOR, Stephen, Norman Wirral, Merseyside CH63 3JW (GB) BIRD, Jayne, Michelle Ellesmere Port, Cheshire CH66 2HT (GB) (74) Representative: Brooijmans, Rob Josephina Wilhelmus  Unilever N.V. Unilever Patent Group Bronland 14 6708 WH Wageningen 6708 WH Wageningen (NL)