| 摘要 |
PURPOSE:To obtain a safe, convenient, flexible heat accumulating material free from leakage of the heat accumulating medium, by sealing a foamed material containing a heat accumulating medium obtained by adding dibenzylidene sorbitol as a gelatinizing agent to paraffin, etc. in the form of separate phases, in a bag. CONSTITUTION:For example, a sheet of foamed material such as foamed polyurethane, foamed polyethylene, etc. containing, in the form of separate phases, a heat accumulating medium 2 composed of a mixture obtained by adding dibenzylidene sorbitol as a gelatinizing agent, pref. in an amount of 0.3-30%, to paraffin or microcrystalline wax, is sealed together with the heater 4 for melting the heat accumulating medium in a bag 3 made of vinyl chloride resin, polyethylene, etc. to obtain the objective heat accumulating material. EFFECT:It can be attached directly and closely to the body without any danger. |
