(19)

(11)

EP 3 873 818 A1

(12)

(43) Date of publication: 08.09.2021 Bulletin 2021/36 (21) Application number: 19805359.7 (22) Date of filing: 24.10.2019

(51) International Patent Classification (IPC):  B65D 5/468(2006.01) B65D 5/74(2006.01) B65D 65/46(2006.01) B65D 5/58(2006.01) B65D 77/06(2006.01) (86) International application number: PCT/FI2019/050757 (87) International publication number: WO 2020/089518 (07.05.2020 Gazette 2020/19)

(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: 02.11.2018 FI 20180123 (71) Applicant: Oy Granula Ab Ltd 48101 Kotka (FI)	(72) Inventor: VARIS, Reijo 00750 Helsinki (FI) (74) Representative: Berggren Oy  P.O. Box 16 Eteläinen Rautatiekatu 10A 00101 Helsinki 00101 Helsinki (FI)