| 摘要 |
PROBLEM TO BE SOLVED: To obtain a photocatalytic capsule-containing coating composition which gives a coating film difficult in photodeterioration and excels in the initial deodorizing properties even without getting light, and a photocatalytic capsule-containing coating film structure. SOLUTION: The photocatalytic capsule-containing coating composition is obtained by dispersing photocatalytic capsules obtained by including fine particles (titanium oxide, or the like) having a photocatalytic capacity and a primary particle diameter of 5-9 nm in microcapsules of a hollow porous silica into a binder (an acrylic emulsion, or the like). The photocatalyst capsule- containing coating film structure can be obtained by coating this composition on a substrate to form a coating film, and an offensive odor, a harmful gas, or the like, is physicaly adsorbed on the photocatalytic capsules exposed on the surface of the coating film which exhibits an deodorizing effect. Furthermore, the film is photodegraded on getting ultraviolet rays, or the like.
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