| 摘要 |
PROBLEM TO BE SOLVED: To provide an exterior structure capable of obtaining high-degree photocatalytic gas decomposition activity even in a case that the photocatalyst layer is applied in a thickness of above 2μm so as to suppress the deterioration of an enamel coating surface or clear coating surface, and a coating solution therefor. SOLUTION: The exterior structure is formed by providing the photocatalyst layer on the surface of a base material and the photocatalyst layer is obtained by drying the photocatalyst coating solution applied to the surface of the base material. The photocatalyst coating solution is composed of photocatalytic titanium oxide particles, cerium oxide particles, a curable silicone emulsion and water. The cerium oxide particles are partially subjected to coating or modification treatment by a substance having a hydrophobic group and the average particle size of the photocatalytic titanium oxide particles is smaller than that of the emulsion. COPYRIGHT: (C)2011,JPO&INPIT
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