(19)

(11)

EP 4 369 951 A1

(12)

(43) Date of publication: 22.05.2024 Bulletin 2024/21 (21) Application number: 22737512.8 (22) Date of filing: 14.07.2022

(51) International Patent Classification (IPC):  A24B 15/14(2006.01) A24B 15/30(2006.01) A24D 1/20(2020.01) A24B 15/16(2020.01) A24D 1/18(2006.01) (52) Cooperative Patent Classification (CPC): A24D 1/20; A24D 1/18; A24B 15/14; A24B 15/16; A24B 3/14 (86) International application number: PCT/EP2022/069746 (87) International publication number: WO 2023/285597 (19.01.2023 Gazette 2023/03)

(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: 16.07.2021 EP 21186086 (71) Applicant: Philip Morris Products S.A. 2000 Neuchâtel (CH)	(72) Inventors: ARNDT, Daniel 2000 Neuchâtel (CH) CAMPANONI, Prisca 2000 Neuchâtel (CH) (74) Representative: Taylor, Gillian Claire  Reddie & Grose LLP The White Chapel Building 10 Whitechapel High Street London E1 8QS London E1 8QS (GB)