PHOTOCATALYST-CONTAINING AQUEOUS CURABLE COATING COMPOSITION AND METHOD FOR PRODUCTION THEREOF

PROBLEM TO BE SOLVED: To provide a photocatalyst-containing aqueous curable coating composition capable of forming a cured coating film which is excellent in durability to oxidative decomposition action of photocatalysts and cracking resistance after forming a coated film, having also excellent weat...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUZAWA HIROSHI, GOTO TOKIO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES THEIR RELEVANT APPARATUS TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a photocatalyst-containing aqueous curable coating composition capable of forming a cured coating film which is excellent in durability to oxidative decomposition action of photocatalysts and cracking resistance after forming a coated film, having also excellent weathering resistance and stain resistance, and a method for production of the coating composition. SOLUTION: The photocatalyst-containing aqueous curable coating composition comprises both of an aqueous dispersion (I) in which resin particles obtained by including photocatalyst oxide fine particles (D) into a composite resin (ABC) obtained by binding a polysiloxane segment (B) of a composite resin (AB) formed by chemically bonding a polymer segment (A) having neutralized acid groups to the polysiloxane segment (B) and a polysiloxane segment (C) resulting from an alkyltrialkoxysilane condensate (c) whose alkyl groups each have 1 to 3 carbon atoms through a silicon-oxygen linkage are dispersed into an aqueous medium, and a curing agent (II) for the composite resin (ABC); and a method for the production of the coating composition is disclosed. COPYRIGHT: (C)2009,JPO&INPIT