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EP 4 305 137 A1

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(43) Date of publication: 17.01.2024 Bulletin 2024/03 (21) Application number: 22711020.2 (22) Date of filing: 07.03.2022

(51) International Patent Classification (IPC):  C11D 1/66(2006.01) C11D 3/20(2006.01) C11D 17/00(2006.01) C11D 3/04(2006.01) C11D 1/22(2006.01) C11D 1/83(2006.01) C11D 3/37(2006.01) E03D 9/02(2006.01) C11D 1/14(2006.01) (52) Cooperative Patent Classification (CPC): C11D 1/146; C11D 1/22; C11D 1/662; C11D 1/83; C11D 3/2065; C11D 3/3761; C11D 17/0056; C11D 3/046; E03D 9/02; E03D 2009/024; E03D 2009/026 (86) International application number: PCT/EP2022/055715 (87) International publication number: WO 2022/189340 (15.09.2022 Gazette 2022/37)

(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: 08.03.2021 EP 21161308 (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 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: ACHARYA, Koushik 6708 WH Wageningen (NL) LONTOUO TAKEMLON, Olivier 6708 WH Wageningen (NL) STEFANONI, Michele 6708 WH Wageningen (NL) VALCARENGHI, Ivan 6708 WH Wageningen (NL) (74) Representative: Corsten, Michael Allan  Unilever Patent Group Bronland 14 6708 WH Wageningen 6708 WH Wageningen (NL)