| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat ray shielding resin sheet material and a heat ray shielding resin sheet material laminate which are excellent not only in visible light transmission and heat ray shielding property but in heat resistance, and a building structure using these. SOLUTION: The heat ray shielding resin sheet material contains fine particles having heat ray shielding function in a resin, wherein the fine particles comprise fine particles of a tungsten multiple oxide B having a hexagonal crystal structure in which zinc is contained as solid solution. The tungsten multiple oxide B is represented by general formula: ZnxMyWOz (wherein Zn is zinc; M is one or more elements selected from Cs, Rb, K, Na, Ba, Ca, Sr and Mg; W is tungsten; O is oxygen; 0.001≤x≤2.0; 0.1≤y≤0.5; and 2.2≤z≤3.0), and has a larger lattice constant ratio c/a than a tungsten multiple oxide A represented by general formula: MyWOz (wherein M, W and O are identical with the above M, W and O; 0.1≤y≤0.5; and 2.2≤z≤3.0), the lattice constant ratio c/a being 1.027300-1.027700. The fine particles have a dispersed particle size of 1-500 nm. COPYRIGHT: (C)2011,JPO&INPIT
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