PROTECTIVE LAYERS AND SELF-CONTAINED HEAT-GENERATING COMPOSITIONS FOR THERMAL GAS GENERATORS

Gas generating devices and methods of manufacturing and using such gas generating devices are described herein. A gas generator device may be manufactured to include a heat-generating composition that is substantially dimensionally stable during and after a gas generation reaction. The heat-generating composition may comprise one or more binding agents, a structural, physical support, or both. The gas generator device additionally includes a gas generating composition, and in some implementations, may include at least one protective layer. In some embodiments, at least a portion of the at least one protective layer is configured to undergo thermal decomposition or disintegration, using heat generated by a reaction of the heat-generating composition to allow the heat-generating and gas-generating composition to come into contact.