(19)

(11)

EP 3 356 241 A1

(12)

(43) Date of publication: 08.08.2018 Bulletin 2018/32 (21) Application number: 16850436.3 (22) Date of filing: 23.09.2016

(51) International Patent Classification (IPC):  B65D 5/468(2006.01) B65D 5/30(2006.01) B65D 5/46(2006.01) B65D 5/22(2006.01) (86) International application number: PCT/FI2016/050665 (87) International publication number: WO 2017/055682 (06.04.2017 Gazette 2017/14)

(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: MA MD (30) Priority: 02.10.2015 FI 20154178 U (71) Applicant: Stora Enso Oyj 00160 Helsinki (FI)	(72) Inventor: TUHKUNEN, Mika 15680 Lahti (FI) (74) Representative: Forsberg, Anna Karin  Stora Enso AB Group Intellectual Property Box 9090 65009 Karlstad 65009 Karlstad (SE)