Devices for maintaining food products at low temperature

A thermal insulating device for containing item(s) or fluid(s) at a temperature below ambient temperature comprising:

• (a) a container or compartment for holding food and/or beverage in a cooled condition, said container comprising thermoformed liner having an average thickness of not greater than about 10 mm, said liner being formed at least in part from material selected from the group consisting of glass-clear polystyrene (GPPS), impact-modified polystyrene (HIPS), styrene-butadiene block copolymers, ASA, SAN, ABS, polyolefins, acrylates and methacrylates, polycarbonates (PCs), polyvinyl chloride (PVC), polyethylene terephthalate (PET) and mixtures, combinations, laminates and layers of these;
• and (b) thermal insulation adjacent said liner and comprising a polymeric material having closed cells therein wherein said cells are formed from and/or contain a blowing agent comprising at least about 50% by weight of transHFCO-1233zd.