Container with functions of temperature indication and thermal storage

Abstract

A container with functions of temperature indication and thermal storage is provided. The container includes: an inner bottle containing a liquid, a thermochromic and thermal storage material layer disposed on the outer side of the inner bottle, and a first polymer layer disposed on the outer side of the thermochromic and thermal storage material layer. The thermochromic and thermal storage material layer comprises a thermal storage material and a thermochromic material. The thermal storage material is adapted to undergo a phase change for absorption or release of thermal energy. The thermochromic material is mixed in the thermal storage material and having at least two color changes depending on a temperature change. Wherein, the first polymer layer includes a wavelength-selective polymer, and the thermochromic and thermal storage material layer absorbs light passing through the first polymer layer.

What is claimed is: 
     
         1 . A container with functions of temperature indication and thermal storage, comprising:
 an inner bottle containing a liquid;   a thermochromic and thermal storage material layer disposed on an outer side of the inner bottle; and   a first polymer layer disposed on an outer side of the thermochromic and thermal storage material layer,   wherein the thermochromic and thermal storage material layer comprises:
 a thermal storage material adapted to undergo a phase change for absorbing or releasing thermal energy; and 
 a thermochromic material mixed in the thermal storage material, and having at least two color changes depending on a temperature change, 
   wherein the first polymer layer comprises a wavelength-selective polymer, and the thermochromic and thermal storage material layer absorbs light passing through the first polymer layer.   
     
     
         2 . The container with functions of temperature indication and thermal storage of  claim 1 , wherein an endothermic peak and an exothermic peak of the thermochromic and thermal storage material layer lies in a range of an optimum drinking temperature. 
     
     
         3 . The container with functions of temperature indication and thermal storage of  claim 2 , wherein the optimum drinking temperature is in a range of 55° C. to 65° C. 
     
     
         4 . The container with functions of temperature indication and thermal storage of  claim 1 , wherein the wavelength-selective polymer is a polymer having a visible light transmittance and a near-infrared light transmittance of above 70%, and a mid-infrared light transmittance of below 10%. 
     
     
         5 . The container with functions of temperature indication and thermal storage of  claim 1 , wherein the thermochromic and thermal storage material includes saturated higher fatty acids. 
     
     
         6 . The container with functions of temperature indication and thermal storage of  claim 1 , wherein the container further comprises:
 a second polymer layer disposed on an outer side of the first polymer layer, and including the wavelength-selective polymer; and   a medium layer disposed between the first polymer layer and the second polymer layer,   wherein the thermochromic and thermal storage material layer absorbs light passing through the first polymer layer, the second polymer layer, and the medium layer.   
     
     
         7 . The container with functions of temperature indication and thermal storage of  claim 6 , wherein an endothermic peak and an exothermic peak of the thermochromic and thermal storage material layer lies in a range of an optimum drinking temperature. 
     
     
         8 . The container with functions of temperature indication and thermal storage of  claim 7 , wherein the optimum drinking temperature is in a range of 55° C. to 65° C. 
     
     
         9 . The container with functions of temperature indication and thermal storage of  claim 6 , wherein the wavelength-selective polymer is a polymer having a visible light transmittance and a near-infrared light transmittance of above 70%, and a mid-infrared light transmittance of below 10%. 
     
     
         10 . The container with functions of temperature indication and thermal storage of  claim 6 , wherein the thermochromic and thermal storage material includes saturated higher fatty acids. 
     
     
         11 . The container with functions of temperature indication and thermal storage of  claim 6 , wherein the medium layer is a vacuum layer. 
     
     
         12 . The container with functions of temperature indication and thermal storage of  claim 11 , wherein an endothermic peak and an exothermic peak of the thermochromic and thermal storage material layer lies in a range of an optimum drinking temperature. 
     
     
         13 . The container with functions of temperature indication and thermal storage of  claim 12 , wherein the optimum drinking temperature is in a range of 55° C. to 65° C. 
     
     
         14 . The container with functions of temperature indication and thermal storage of  claim 11 , wherein the wavelength-selective polymer is a polymer having a visible light transmittance and a near-infrared light transmittance of above 70%, and a mid-infrared light transmittance of below 10%. 
     
     
         15 . The container with functions of temperature indication and thermal storage of  claim 11 , wherein the thermochromic and thermal storage material includes saturated higher fatty acids.