| 摘要 |
PROBLEM TO BE SOLVED: To provide a building material which exhibits a harmful-gas decomposing ability while preventing deterioration of a base material over a long period of time. SOLUTION: The building material includes the base material, an intermediate layer provided on the base material, and a photocatalyst layer provided on the intermediate layer. The photocatalyst layer contains photocatalyst particles made of a metal oxide which is excited by ultraviolet rays. The intermediate layer contains a weather-resistant resin and a hydroxyphenyltriazine compound. The building material is preferably used in the form of being exposed to sunlight. COPYRIGHT: (C)2011,JPO&INPIT
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