(19)

(11)

EP 4 225 055 A1

(12)

(43) Date of publication: 16.08.2023 Bulletin 2023/33 (21) Application number: 21782770.8 (22) Date of filing: 07.10.2021

(51) International Patent Classification (IPC):  A24B 15/16(2020.01) A24B 15/30(2006.01) (52) Cooperative Patent Classification (CPC): A24B 15/16; A24B 15/30 (86) International application number: PCT/EP2021/077782 (87) International publication number: WO 2022/074157 (14.04.2022 Gazette 2022/15)

(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: 07.10.2020 EP 20200643 (71) Applicant: Philip Morris Products S.A. 2000 Neuchâtel (CH)	(72) Inventors: GAMBS, Celine 2000 Neuchâtel (CH) VOLLMER, Jean-Yves 2000 Neuchâtel (CH) (74) Representative: Whitfield, Ian  Reddie & Grose LLP The White Chapel Building 10 Whitechapel High Street London E1 8QS London E1 8QS (GB)