| 摘要 |
PROBLEM TO BE SOLVED: To provide a synthetic resin member having photocatalyst capability, and especially the synthetic resin member in which crack does not occur and photocatalyst particles do not drop off. SOLUTION: The synthetic resin member comprises a photocatalyst layer 4 formed on the surface of a synthetic resin substrate 1, wherein the consistency of photocatalyst particles contained in the photocatalyst layer 4 is made to be the thinnest at the surface portion. In addition, a silica layer may be formed on it. The thickness of this photocatalyst layer 4 is in a range of 5-35 nm. Since photocatalyst particle consistency is thin on the surface, there is little dropping off of the particles and they will not drop off if there is the silica layer so that stabilized photocatalyst capability is demonstrated for a long period of time. In addition, if thickness of the photocatalyst layer 4 is 5-35 nm, crack is not generated even if the synthetic resin substrate 1 carries out heat telescopic motion. COPYRIGHT: (C)2007,JPO&INPIT
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