초록 ▼

Improved heaters and self-heating packages that function without application of external energy. Heat is generated by contact of a heat-producing composition, such as calcium oxide, and an activating solution which is typically water. The heater contains multi-compartments containing heat-producing

Improved heaters and self-heating packages that function without application of external energy. Heat is generated by contact of a heat-producing composition, such as calcium oxide, and an activating solution which is typically water. The heater contains multi-compartments containing heat-producing composition and activating solution. The heater is activated by application of hand pressure to rupture a frangible seal which allows the heater components to mix. The heater compartments are at least in part formed from flexible walls. The self-heating package has one or more products or product containers in thermal contact with one or more heaters. In preferred packaging embodiments, the heating package has one or more product containers or pouches in thermal contact with one or more heaters. In a specific embodiment, the product container is integrally formed with the heater. Preferred self-heating packages are constructed entirely of flexible packaging materials.

대표청구항 ▼

[ We claim:] [1.]1. A self-heating package for heating a product which comprises(a) a heater comprising:a first non-porous compartment containing a predetermined amount of activating solution, the first compartment having a flexible wall;a second non-porous compartment adjacent the first compartment

[ We claim:] [1.]1. A self-heating package for heating a product which comprises(a) a heater comprising:a first non-porous compartment containing a predetermined amount of activating solution, the first compartment having a flexible wall;a second non-porous compartment adjacent the first compartment containing a predetermined amount of a heat-producing composition the second compartment having a flexible wall; anda frangible seal formed between and separating said first and second compartments that can be ruptured by pressure applied by hand to allow activating solution in the first compartment to contact the heat-producing composition in the second compartment thereby generating heat; and(b) a flexible product container wherein a surface of the heater forms at least a portion of the product container and wherein the heater when activated transfers heat to the product or to the product in the container.