Cooling agent for cold packs and food and beverage containers

Abstract

Safe, stable, non-toxic and recyclable cooling compositions comprising solid particulate compounds that undergo an endothermic process when mixed with water such that the resulting mixture is useful for cooling surfaces, liquids and solids. The compositions always include one or more compounds from a group consisting of endothermic compounds that contain potassium; one or more compounds from a group of endothermic compounds that contain nitrogen; and at least one compound from a group consisting of ammonium phosphate, diammonium phosphate, ammonium polyphosphate, ammonium pyrophosphate and ammonium metaphosphate such that the compound or mixture of compounds in this group is at least 1% by weight of the final composition.

Dependencies are inferred from the claim text.