| abstract |
This invention provides a heat storing material used around a body, comprising a polymer or oligomer of -10 to 100 DEG C melting point and 30 J/g or more latent heat; and a heat storing composition comprising a synthetic resin blended with the heat storing material. This heat storing material is melted by absorbing heat when the external air temperature is increased and solidifies by releasing heat when the external air temperature is decreased. Thus, fluctuations of external air temperature can be relieved, easing maintaining of a given temperature, so that the functions of heat storing material can be exerted. Further, the viscosity of the heat storing material is so high that, even after melting, outflowing of the heat storing material can be suppressed. These heat storing material and heat storing composition enable producing a film or sheet, laminate, molded item, heat storing composite yarn or heat storing cloth member which is suitable for use around a body. |