(19)

(11)

EP 3 746 369 A1

(12)

(43) Date of publication: 09.12.2020 Bulletin 2020/50 (21) Application number: 19710459.9 (22) Date of filing: 30.01.2019

(51) International Patent Classification (IPC):  B65D 8/00(2006.01) B65D 23/08(2006.01) B65D 23/00(2006.01) (86) International application number: PCT/GB2019/050259 (87) International publication number: WO 2019/150108 (08.08.2019 Gazette 2019/32)

(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: 31.01.2018 GB 201801609 (71) Applicant: POLYKEG S.r.l. 24050 Calcinate (BG) (IT)	(72) Inventors: WALTON, Philip Andrew Bishop Auckland County Durham DL14 6XG (GB) SONZOGNI, Sergio 24050 Grassobbio (IT) (74) Representative: Craske, Stephen Allan  Craske & Co. Shallowford Holsworthy Road Hatherleigh Okehampton Devon EX20 3LE Okehampton Devon EX20 3LE (GB)