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(11)

EP 4 366 557 A1

(12)

(43) Date of publication: 15.05.2024 Bulletin 2024/20 (21) Application number: 22736300.9 (22) Date of filing: 07.07.2022

(51) International Patent Classification (IPC):  A24B 15/14(2006.01) A24B 15/28(2006.01) A24B 15/16(2020.01) A24B 15/42(2006.01) (52) Cooperative Patent Classification (CPC): A24B 15/16; A24B 15/285; A24B 15/42; A24B 15/14 (86) International application number: PCT/EP2022/068941 (87) International publication number: WO 2023/280991 (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 Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 07.07.2021 EP 21184365 (71) Applicant: Philip Morris Products S.A. 2000 Neuchâtel (CH)	(72) Inventors: DE PALO, Damien 2000 Neuchâtel (CH) HUANG, Houxue 2000 Neuchâtel (CH) FEDELI, Francesco 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)