METHOD OF MANUFACTURING DISPOSABLE COLD PACK AND RELATED DISPOSABLE COLD PACK CONTAINING PHOSPHATE AMMONIUM NITRATE

摘要

Plastic sheet can be heat-sealed to form a water-tight envelope havingan open top. A water-tight frangible container can be loaded into theenvelope through the open top. The water-tight frangible container cancontain a predetermined amount of water. A predetermined amount ofphosphate ammonium nitrate (PAN) can be loaded into the envelopethrough the open top. The relative proportion of the predeterminedamounts of phosphate ammonium nitrate to water can be selected toprovide a target cooling effect to a portion of a body to whichcooling is to be applied. The open top of the envelope can be heat-sealedto form a water-tight outer pack.