| 摘要 |
PROBLEM TO BE SOLVED: To provide a photocatalyst-containing water-based curable coating composition forming a cured coating film which is excellent in the durability of its oxidative decomposition action of a photocatalyst and cracking resistance after forming the film, and which has also excellent weathering resistance and stain resistance, and to provide a production method thereof. SOLUTION: The photocatalyst-containing water-based curable coating composition comprises: an aqueous dispersion in which in an aqueous medium a composite resin (ABC) in which a polysiloxane segment (B) of a composite resin (AB) formed by chemically bonding a polymer segment (A) having a neutralized acid group and a polysiloxane segment (B) and a polysiloxane segment (C) resulting from a 1-3C alkyltrialkoxysilane condensate (c) are bonded through a silicon-oxygen linkage dissolves or disperses and photocatalyst oxide fine particles (D) disperse; and a curing agent (E) for the composite resin (ABC). In addition, the production method thereof is provided. COPYRIGHT: (C)2008,JPO&INPIT
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