(19)

(11)

EP 3 924 263 A1

(12)

(43) Date of publication: 22.12.2021 Bulletin 2021/51 (21) Application number: 20756239.8 (22) Date of filing: 14.02.2020

(51) International Patent Classification (IPC):  B65D 5/462(2006.01) B65D 5/22(2006.01) (52) Cooperative Patent Classification (CPC): B65D 5/22 (86) International application number: PCT/IB2020/051249 (87) International publication number: WO 2020/165853 (20.08.2020 Gazette 2020/34)

(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: 15.02.2019 SE 1950184 (71) Applicant: Stora Enso Oyj 00101 Helsinki (FI)	(72) Inventor: WILLYSON, Roland 553 12 Jönköping (SE) (74) Representative: Forsberg, Anna Karin  Stora Enso OYJ Group Intellectual Property Box 9090 65009 Karlstad 65009 Karlstad (SE)