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EP 4 208 529 A1

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(43) Date of publication: 12.07.2023 Bulletin 2023/28 (21) Application number: 20951852.1 (22) Date of filing: 01.09.2020

(51) International Patent Classification (IPC):  C11D 1/22(2006.01) C11D 1/75(2006.01) C11D 9/00(2006.01) C11D 1/12(2006.01) C11D 17/06(2006.01) (52) Cooperative Patent Classification (CPC): C11D 1/75; C11D 17/06; C11D 1/146; C11D 1/83; C11D 11/0017 (86) International application number: PCT/CN2020/112760 (87) International publication number: WO 2022/047604 (10.03.2022 Gazette 2022/10)

(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 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, OH 45202 (US)	(72) Inventors: XU, Dan Beijing 101312 (CN) ZHAO, Yue Beijing 101312 (CN) (74) Representative: P&G Patent Belgium UK  N.V. Procter & Gamble Services Company S.A. Temselaan 100 1853 Strombeek-Bever 1853 Strombeek-Bever (BE)