Retortable self-heating food container with air access structure
First Claim
Patent Images
1. A package having a first compartment, the package comprising:
- a flexible laminate film comprising a bottom layer bonded to a top layer with a permanent adhesive, the bottom layer and the top layer being substantially coextensive;
the bottom layer comprising a substrate and a continuous resinous frangible skin layer, wherein the frangible skin layer is disposed between the substrate and the permanent adhesive;
the top layer being precision scored to form an overcut which defines a periphery of a flap;
the substrate being precision scored to form one or more undercuts, each undercut defining a die cut section;
whereinthe frangible skin layer is in direct contact with the permanent adhesive and is located on an outer facing surface of the substrate between the substrate and the permanent adhesive and within the flap periphery such that the frangible skin layer connects the die cut sections of the substrate to the permanent adhesive; and
wherein lifting the flap from the bottom layer removes the die cut sections from the bottom layer to create air holes in the bottom layer through which air can pass to the first compartment.
1 Assignment
0 Petitions
Accused Products
Abstract
A flexible, self-heating food container capable of withstanding high temperatures is provided. The container comprises a two-layer laminate structure having an air access flap that can be lifted by the consumer to allow air to enter the part of the container where an exothermic reaction takes place.
13 Citations
14 Claims
-
1. A package having a first compartment, the package comprising:
-
a flexible laminate film comprising a bottom layer bonded to a top layer with a permanent adhesive, the bottom layer and the top layer being substantially coextensive; the bottom layer comprising a substrate and a continuous resinous frangible skin layer, wherein the frangible skin layer is disposed between the substrate and the permanent adhesive; the top layer being precision scored to form an overcut which defines a periphery of a flap; the substrate being precision scored to form one or more undercuts, each undercut defining a die cut section;
whereinthe frangible skin layer is in direct contact with the permanent adhesive and is located on an outer facing surface of the substrate between the substrate and the permanent adhesive and within the flap periphery such that the frangible skin layer connects the die cut sections of the substrate to the permanent adhesive; and wherein lifting the flap from the bottom layer removes the die cut sections from the bottom layer to create air holes in the bottom layer through which air can pass to the first compartment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification