(19)

(11)

EP 4 366 559 A1

(12)

(43) Date of publication: 15.05.2024 Bulletin 2024/20 (21) Application number: 22740894.5 (22) Date of filing: 07.07.2022

(51) International Patent Classification (IPC):  A24B 15/14(2006.01) A24B 15/42(2006.01) A24B 15/16(2020.01) A24D 1/20(2020.01) (52) Cooperative Patent Classification (CPC): A24B 15/16; A24B 15/14; A24B 15/42; A24D 1/20 (86) International application number: PCT/EP2022/068955 (87) International publication number: WO 2023/281000 (12.01.2023 Gazette 2023/02)

(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 (30) Priority: 07.07.2021 EP 21184365 13.06.2022 EP 22178772 (71) Applicant: Philip Morris Products S.A. 2000 Neuchâtel (CH)	(72) Inventors: WAIRIMU, Esther 2000 Neuchâtel (CH) HUANG, Houxue 2000 Neuchâtel (CH) (74) Representative: Maxwell-Keys, Alex Joe  Reddie & Grose LLP The White Chapel Building 10 Whitechapel High Street London, Greater London E1 8QS London, Greater London E1 8QS (GB)