Flameless heater product for ready-to-eat meals and process for

Details Flameless heater product for ready-to-eat meals and process for Flameless heater product for ready-to-eat meals and process for

1991-03-04

1992-06-02

Dority, Carroll B.

Stoves and furnaces

Heaters

Chemical

F24J 100

Patent

active

051178095

ABSTRACT:
A water-activated, exothermic-chemical heater for packaging in a plastic heating bag is produced by methods which allow the heater material to be loosely placed in the heater while retaining the heating material uniformly distributed over the heater by cup-shaped or through cavities in a rigid member covered by a porous, wettable material on at least one side. Alternatively, the heater material is loosed placed in small bags made in a flexible porous material, with the necessary system rigidity provided by a cardboard or polymeric outer cover on one or both sides of the flexible porous material. Food-grade acid anhydride or free acid can be incorporated into the heater material to maintain proper pH. Flammability control can be achieved by blending a known fire retardant into the heater pad materials.

REFERENCES:
patent: 2935983 (1960-05-01), Reik
patent: 3550578 (1970-12-01), Fearon et al.
patent: 3942511 (1976-03-01), Black et al.
patent: 4366804 (1983-01-01), Abe
patent: 4516564 (1985-05-01), Koiso et al.
patent: 4522190 (1985-06-01), Kuhn et al.
patent: 4756299 (1988-07-01), Podella

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