Abstract: A thermal receptacle having a side wall which has an inner surface and a spaced outer surface. An interstitial chamber may be defined by the space between the inner and outer surfaces. A phase change material containing insert is provided into the receptacle. The insert contains a phase change material or a plurality of different phase change materials. Phase change material may also be located within the interstitial chamber. The phase change material regeneratively absorbs thermal energy from a hot liquid in the receptacle thereby rapidly lowering the temperature of the liquid and then the material releases the thermal energy back to the liquid to maintain the temperature of the liquid.

Abstract: A package and method of use for packaging temperature sensitive payloads during transport through environments having extreme temperatures. The package includes a segmented, flexible panel containing a plurality of phase change material segments. A pair of such panels may be used, with each panel being separately thermally preconditioned as a function of anticipated ambient temperature during transport. The panels may be formed by retaining phase change material segments between a pair of flexible sheets.