(19)

(11)

EP 3 681 811 A1

(12)

(43) Date of publication: 22.07.2020 Bulletin 2020/30 (21) Application number: 18782516.1 (22) Date of filing: 13.09.2018

(51) International Patent Classification (IPC):  B65D 5/48(2006.01) (86) International application number: PCT/IB2018/057000 (87) International publication number: WO 2019/053622 (21.03.2019 Gazette 2019/12)

(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: 15.09.2017 SE 1751128 (71) Applicant: Stora Enso Oyj 00101 Helsinki (FI)	(72) Inventor: LUBINSKI, Tomasz 41-220 Sosnowiec (PL) (74) Representative: Steinrud, Henrik  Stora Enso AB Group Intellectual Property Box 9090 65009 Karlstad 65009 Karlstad (SE)