PROBLEM TO BE SOLVED: To provide a cold-insulation tool comprising a novel cold-insulation composition whose cubical expansion during freezing is suppressed and which can stably maintain the cold-insulation temperature at around -2 to 0°C.SOLUTION: The cold-insulation tool comprises a cold-insulation composition that contains a non-alcohol whose solubility into water at 25°C is 40 g/100 mL or more and whose molecular weight is 110 or more, and a solvent other than alcohol that does not correspond to the non-alcohol, and in which the content of the non-alcohol is 0.6 to 2.9 mass%.COPYRIGHT: (C)2015,JPO&INPIT【課題】凝固時の体積膨張が抑制され、保冷温度を-2~0℃付近で安定して維持できる新規の保冷用組成物を備えた保冷具の提供。【解決手段】25℃の水に対する溶解度が40g/100mL以上であり、且つ分子量が110以上である非アルコール類と、前記非アルコール類に該当しないアルコール以外の溶媒と、を含有し、前記非アルコール類の含有量が0.6~2.9質量%である保冷用組成物を備えたことを特徴とする保冷具。【選択図】なし
