B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
206/6, 190/137.5
B65D 17/50 (2006.01) B29C 63/00 (2006.01) B29C 65/02 (2006.01)
Patent
CA 1172995
Abstract of the Disclosure Disclosed is an easily openable vessel closure compri- sing a can end member having a preformed opening, an easily peelable opening piece which is applied to the outer side of the can end member so that the opening piece covers said opening and adheres closely to the peripheral portion of said opening, and a protecting covering layer formed to cover the cut edge of the opening of the can end member, wherein the protecting covering layer is formed of a thermoplastic resin having a heat bondability and the protecting covering layer includes a film layer heat- bonded to the inner and outer peripheral portions of the opening and a projecting cover heat-bonded to the cut edge of the opening integrally with said film layer, and said opening piece is heat-bonded to the can end member through the protecting covering layer located outside the can end member and said protecting covering layer is stuck closely to the cut edge of the opening so that when the opening piece is peeled, the protecting covering layer is left on the side of the can end member. This vessel closure is excellent in the seal reliability, corrosion resistance, flavor-retaining property and easy openability.
397309
Aizawa Masanori
Ishibashi Kazuhisa
Kaga Yasuo
Miyamatsu Yasunori
Ueno Hiroshi
Smart & Biggar
Toyo Seikan Kaisha Ltd.
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