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EP 4 045 621 A1

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(43) Date of publication: 24.08.2022 Bulletin 2022/34 (21) Application number: 20785504.0 (22) Date of filing: 02.10.2020

(51) International Patent Classification (IPC):  C11D 1/66(2006.01) C11D 3/386(2006.01) C11D 3/22(2006.01) C11D 11/00(2006.01) (52) Cooperative Patent Classification (CPC): C11D 1/66; C11D 3/38654; C11D 3/221; C11D 11/0023 (86) International application number: PCT/EP2020/077701 (87) International publication number: WO 2021/073901 (22.04.2021 Gazette 2021/16)

(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: 15.10.2019 EP 19203316 (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: MIXTRO SERRASQUEIRO, Marina Wirral, CH63 3JW (GB) CORLETT, Graham Wirral, CH63 3JW (GB) LANG, Dietmar, Andreas Wirral, CH63 3JW (GB) (74) Representative: Brooijmans, Rob Josephina Wilhelmus  Unilever N.V. Unilever Patent Group Bronland 14 6708 WH Wageningen 6708 WH Wageningen (NL)