CONTAINER HAVING SELF-CONTAINED HEATER MATERIAL

摘要

A container is provided that has a compartment for storing an air-activated material for heating contents. The compartment is formed between a first web of material and a second web of material. The first web includes a first film layer laminated to a second film layer. A portion of the first film layer of the first web can be separated from the second film layer to reveal openings in the first film layer that allow air to enter the compartment. When the air contacts the air-activated material to activate the material, an exothermic reaction takes place that serves to produce heat, such as to heat the contents of the container. Prior to separation of the first and second film layers, the container is designed to allow ingress of oxygen into the compartment at a rate less than approximately 3 cc per 100 in2 per 24 hrs. at 23° C.

主权项

1. A container comprising:
a first web comprising a laminate of a first film layer and a second film layer, wherein the first film layer is adhered via an adhesive layer to the second film layer; a second web peripherally sealed to the first web so as to form a compartment therebetween; and an air-activated material disposed within the compartment, wherein at least a portion of the first film layer of the first web is configured to be separated from the second film layer to reveal a plurality of openings in the first film layer so as to allow air to enter the compartment, wherein the air-activated material is configured to react with the air entering the compartment via the openings to activate the material, and wherein prior to separation of the second film layer from the first film layer, the container is configured to allow ingress of oxygen into the compartment at a rate less than approximately 3 cc per 100 in2 per 24 hrs. at 23° C.