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EP 4 532 658 A1

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(43) Date of publication: 09.04.2025 Bulletin 2025/15 (21) Application number: 23728006.0 (22) Date of filing: 22.05.2023

(51) International Patent Classification (IPC):  C11D 3/00(2006.01) C11D 3/38(2006.01) C11D 17/00(2006.01) C11D 3/22(2006.01) C11D 3/50(2006.01) (52) Cooperative Patent Classification (CPC): C11D 3/50; C11D 3/505; C11D 17/0039; C11D 3/384; C11D 3/382; C11D 2111/12 (86) International application number: PCT/EP2023/063571 (87) International publication number: WO 2023/232516 (07.12.2023 Gazette 2023/49)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 31.05.2022 EP 22176439 (71) Applicants: Unilever IP Holdings B.V. 3013 AL Rotterdam (NL) AL AT BE BG CH CZ DK EE ES FI FR GR HR HU IS LI LT LU LV MC ME MK NL NO PL PT RO SE SI SK SM  Unilever Global IP Limited Wirral, Merseyside CH62 4ZD (GB) CY DE GB IE IT MT RS TR

(72) Inventors: BOARDMAN, Christopher 6708 WH Wageningen (NL) HENDERSON, Andrew Robert 6708 WH Wageningen (NL) JONES, Craig Warren 6708 WH Wageningen (NL) (74) Representative: Reijns, Tiemen Geert Pieter  Unilever Patent Group Bronland 14 6708 WH Wageningen 6708 WH Wageningen (NL)