(19)

(11)

EP 4 048 596 A1

(12)

(43) Date of publication: 31.08.2022 Bulletin 2022/35 (21) Application number: 20879782.9 (22) Date of filing: 20.10.2020

(51) International Patent Classification (IPC):  B65D 5/22(2006.01) B65D 5/66(2006.01) B65D 5/24(2006.01) (52) Cooperative Patent Classification (CPC): B65D 5/22; B65D 5/247; B65D 5/6655; B65D 5/563 (86) International application number: PCT/IB2020/059847 (87) International publication number: WO 2021/079264 (29.04.2021 Gazette 2021/17)

(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: 22.10.2019 SE 1951195 (71) Applicant: Stora Enso Oyj 00101 Helsinki (FI)	(72) Inventor: KARLSSON, Per-Anders 553 07 Jönköping (SE) (74) Representative: Steinrud, Henrik  Stora Enso AB Group Intellectual Property Box 9090 65009 Karlstad 65009 Karlstad (SE)