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US 6,811,843 B2Granted
Insulated beverage or food container
AssigneeAppleton Papers Inc.
InventorsJohn Charles DeBraal, John MacKay Lazar
Life of this patent
Estimating the term…
Abstract
An insulating beverage cup or sleeve is produced with a foam layer disposed on an inner surface of a food or beverage paper stock. A polyethylene film layer is arranged in a position between a paper stock layer and an inside surface of the beverage container. The foam layer decreases the energy transfer between the beverage and the user's hands allowing the user to hold onto the cup for an extended period of time without causing user discomfort or pain, e.g. greatly extends the hold time of the paper cup. The exterior surface of the beverage cup remains highly printable and predisposed to high quality graphics both before and after cup manufacture.
Claims13
An insulated beverage container stock material comprising:
- said stock material having an innermost surface and an outermost surface, said stock material including
- a paper stock layer having an interior surface and an exterior surface, said exterior surface of said paper stock layer forming the outermost surface of said stock material;
- a foam layer being disposed along the interior surface of the paper stock layer, wherein said foam layer is heat laminated foam formed from high density polyethylene, low density polyethylene, linear low density polyethylene, or oriented polypropylene;
- and
- a polyethylene barrier film layer being disposed along the interior surface of the paper stock layer and in continuous and direct contact with said foam layer and said pacer stock layer, wherein the foam layer forms said innermost surface of said stock material.
2 more elements
An insulated beverage container stock material comprising:
- said stock material having an innermost surface and an outermost surface, said stock material including
- a paper stock layer having an interior surface and an exterior surface, said exterior surface of said paper stock layer forming the outermost surface of said stock material;
- a foam layer being disposed along the interior surface of the paper stock layer, wherein said foam layer is heat laminated foam formed from high density polyethylene, low density polyethylene, linear low density polyethylene, or oriented polypropylene;
- a first polyethylene barrier film layer being disposed along the interior surface of the paper stock layer and in continuous and direct contact with said foam layer and said paper stock layer;
- and
- a second polyethylene barrier film layer forming the innermost surface of said stock material and in continuous and direct contact with said foam layer.
3 more elements
An insulated beverage container sleeve comprising:
- a bottomless container wall having a sidewall enclosing a beverage container space, said sidewall including an innermost surface and an outermost surface;
- a paper stack layer forming the outermost surface of said sidewall;
- a heat laminated foam layer being disposed along an interior surface of the paper stock layer;
- and
- a polyethylene barrier film layer being disposed along the interior surface of said paper stock layer in continuous and direct contact with said foam layer and said paper stock layer, wherein said foam layer forms said innermost surface of said sleeve.
2 more elements
An insulated beverage container sleeve comprising:
- a bottomless container wall having a sidewall enclosing a beverage container space, said sidewall including an innermost surface and an outermost surface;
- a paper stock layer forming the outermost surface of said sidewall;
- a heat laminated foam layer being disposed along an interior surface of the paper stock layer;
- and
- a first polyethylene barrier film layer being disposed along the interior surface of said paper stock layer in continuous and direct contact with said foam layer and said paper stock layer;
- and
- a second polyethylene barrier film layer forming the innermost surface of said stock material and in continuous and direct contact with said foam layer.
4 more elements
An insulated beverage container comprising:
- a container wall having a side portion enclosing a beverage containing space, and having an innermost surface and an outermost surface;
- and
- a bottom portion engaging said container wall along said side portion;
- wherein said container wall further includes
- a paper stock layer forming the outermost surface of said container wall;
- a thin polyethylene barrier film layer being arranged between said paper stock layer and said beverage containing space and forming said innermost surface of said container wall;
- and
- a heat laminated foam layer arranged along an interior surface of the paper stock layer and in continuous and direct contact with said polyethylene barrier film layer and said paper stock layer.
5 more elements
An insulated beverage container comprising:
- a container wall having a side portion enclosing a beverage containing space, and having an innermost surface and an outermost surface;
- and
- a bottom portion engaging said container wall along said side portion;
- wherein said container wall further includes
- a paper stock layer forming the outermost surface of said container wall;
- a thin polyethylene barrier film layer being arranged between said paper stock layer and said beverage containing space;
- and
- a foam layer arranged along an interior surface of the container wall and forming the innermost surface of said container wall, said polyethylene film layer being in continuous and direct contact with said foam layer and said paper stock layer, wherein said foam layer is heat laminated foam formed from high density polyethylene, low density polyethylene, linear low density polyethylene, or oriented polypropylene.
5 more elements
Dependencies are inferred from the claim text.