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(11)

EP 4 416 065 A1

(12)

(43) Date of publication: 21.08.2024 Bulletin 2024/34 (21) Application number: 22880520.6 (22) Date of filing: 13.10.2022

(51) International Patent Classification (IPC):  B65D 5/46(2006.01) B65D 81/18(2006.01) B65D 5/06(2006.01) (52) Cooperative Patent Classification (CPC): B65D 5/4612; B65D 5/46088; B65D 5/061; B65D 81/3848; B65D 5/62; B65D 5/563 (86) International application number: PCT/IB2022/059816 (87) International publication number: WO 2023/062574 (20.04.2023 Gazette 2023/16)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 14.10.2021 SE 2151259 (71) Applicant: Stora Enso Oyj 00101 Helsinki (FI)	(72) Inventor: MALMQVIST, Martin 302 35 HALMSTAD (SE) (74) Representative: Glindell, Maria  Stora Enso AB Group Intellectual Property Box 9090 65009 Karlstad 65009 Karlstad (SE)