| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cooling and heating medium enabling the cost to be reduced by increasing the amount of water contained in the cooling and heating medium, capable of heightening cold and heat-retaining effects by increasing the heat capacity and elongating a cold and heat-retaining time, hardly causing separation of the water even after repeated cooling or heating cycles, and capable of elongating a repeatedly used time, and to provide a cold and heat-retaining material using the medium. <P>SOLUTION: The cooling and heating medium 2 contains a crosslinked gelatine and a gelatine-crosslinked gel containing the water. A granular or pulverized product is used as the gelatin-crosslinked gel. The cold and heat-retaining material 1 is obtained by storing the cooling and heating medium 2 composed of the gelatine-crosslinked gel containing 2-60 wt.% of the crosslinked gelatine and 40-98 wt.% of the water, and having 9-3,000 g of jelly strength in a flexible container 3. <P>COPYRIGHT: (C)2012,JPO&INPIT |
