Polymer-laminated metal lid
At least some example embodiments relate to a container including a body and a lid. The body includes a base, a side wall, and an interior region at least partially defined by the base and the side wall. The lid includes a lid wall and a skirt that extends from a periphery of the lid wall. The skirt engages the body to retain the lid on the body. The skirt cooperates with the lid wall to define a cavity. The lid is formed from a laminate including a metal layer and a polymer layer coupled to the metal layer. The polymer layer is disposed inside of the metal layer with respect to the cavity. A portion of the body is disposed inside the cavity when the container is in a closed configuration. At least some example embodiments relate to a forming of manufacturing the lid.
1 . A container comprising:
a body including a base, a side wall, and an interior region at least partially defined by the base and the side wall; and
a lid including,
a lid wall; and
a skirt extending from a periphery of the lid wall, the skirt configured to engage the body to retain the lid on the body, the skirt cooperating with the lid wall to define a cavity, the lid being formed from a laminate including a metal layer and a polymer layer coupled to the metal layer, the polymer layer being inside of the metal layer with respect to the cavity, wherein a portion of the body is configured to be inside the cavity when the container is in a closed configuration,
wherein the body further includes a connection rim extending axially from the side wall, the connection rim configured to engage the lid,
wherein the body further includes a first projection, the first projection extending radially outwardly from the connection rim,
wherein the lid further includes a second projection, the second projection extending radially inwardly from the skirt,
wherein the first projection and the second projection are configured to engage so as to retain the lid on the body, and
the polymer layer includes polyethylene terephthalate (PET) and additionally includes polyethylene (PE), polypropylene (PP), or a combination of PE and PP.
2 . The container of claim 1 , wherein the connection rim defines an indentation configured to permit fluid flow between the interior region and an exterior region of the container when the lid engages the body such that the container is in the closed configuration.
3 . The container of claim 1 , wherein the lid is configured to engage the connection rim in a friction fit.
4 . The container of claim 1 , wherein the first projection is a single continuous projection extending along substantially an outer surface of the connection rim.
5 . The container of claim 1 , wherein the container includes a film seal between the body and the lid.
6 . The container of claim 1 , wherein body includes tin, steel, stainless steel, aluminum, or any combination thereof.
7 . The container of claim 6 , wherein the body includes tin-free steel.
8 . The container of claim 6 , wherein the body includes tin-plated steel.
9 . The container of claim 1 , wherein the body includes fiberboard.
10 . The container of claim 1 , wherein the polymer layer includes a first sublayer and a second sublayer, the second sublayer being coupled to the metal layer.
11 . The container of claim 10 , wherein
the second sublayer includes polyethylene (PE) or a PP copolymer.
12 . The container of claim 1 , wherein the lid further includes an enamel layer on a surface of the polymer layer such that the polymer layer is between the metal layer and the enamel layer, the enamel layer being configured to directly engage the body and be in fluid communication with the interior region of the body.
13 . The container of claim 12 , wherein the enamel layer includes a phenolic, an epoxy, or an epoxy-phenolic.
14 . The container of claim 1 , wherein the first projection includes a plurality of discrete projections arranged circumferentially around the connection rim.
15 . A container comprising:
a body including a base, a side wall, and an interior region at least partially defined by the base and the side wall; and
a lid including,
a lid wall; and
a skirt extending from a periphery of the lid wall, the skirt configured to engage the body to retain the lid on the body, the skirt cooperating with the lid wall to define a cavity, the lid being formed from a laminate including a metal layer and a polymer layer coupled to the metal layer, the polymer layer being inside of the metal layer with respect to the cavity, wherein a portion of the body is configured to be inside the cavity when the container is in a closed configuration, the polymer layer includes polyethylene terephthalate (PET), and additionally polypropylene (PP), polyethylene (PE), or any combination thereof.
16 . The container of claim 14 , wherein the plurality of discrete projections includes more than one axially spaced rows of circumferentially spaced projections.