| 摘要 |
A film which is improved in the resistance to fouling, the durability, and the transparency and has a photocatalytic function is provided by a method of making photocatalyst contained coating layers which comprises the steps of forming on the surface of an organic film an (under)coating of a coating composition composed mainly of at least one component (a) selected from organosilanes, hydrolyzates of the organosilanes, and condensates of the organosilanes and, when desired, a polymer component (b) having a silyl group containing silicon atoms bonded with a hydrolytic group and/or a hydroxy group, and forming on the (under)coating an (over)coating of a coating composition composed mainly of the component (a), a photocatalyst and, if desired, the component (b).
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