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EP 4 680 708 A1

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(43) Date of publication: 21.01.2026 Bulletin 2026/04 (21) Application number: 24705698.9 (22) Date of filing: 22.02.2024

(51) International Patent Classification (IPC):  C11D 1/83(2006.01) C11D 11/00(2006.01) C11D 3/00(2006.01) C11D 17/00(2006.01) (52) Cooperative Patent Classification (CPC): C11D 17/0073; C11D 3/0052; C11D 1/83; C11D 3/0094; C11D 2111/14; C11D 1/72 (86) International application number: PCT/EP2024/054498 (87) International publication number: WO 2024/193937 (26.09.2024 Gazette 2024/39)

(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: GE KH MA MD TN (30) Priority: 17.03.2023 EP 23162664 (71) Applicants: Unilever IP Holdings B.V. 6708 WH Wageningen (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: BATCHELOR, Stephen Norman 6708 WH Wageningen (NL) CORLETT, Graham Leslie 6708 WH Wageningen (NL) KALATHIL, Ramitha 6708 WH Wageningen (NL) WILLS, Peter William 6708 WH Wageningen (NL) WOOLFALL, Marc Philip 6708 WH Wageningen (NL) (74) Representative: van Benthum, Wilhelmus A. J.  Unilever Patent Group Bronland 14 6708 WH Wageningen 6708 WH Wageningen (NL)