Coating composition, process for preparing the composition, and process for preparing dispersion of inorganic oxide sol

摘要: A coating composition comprising: a resin (A) prepared by copolymerizing 10 to 90 wt.% of (meth)acrylate (a) C1-C12 alkyl alcohol with 50 hydroxylated monomer (b) having polymerizable double bond and 0.1 carboxylated (c) as the essential components glass transition temperature 120 °C, number-average molecular weight 2,000 100,000, hydroxyl number 150 mgKOH/g an acid value 1 25 mgKOH/g, at least one compound (B) selected from among polyisocyanate compounds each two (blocked) isocyanate groups in molecule aminoplast resins, dispersion (C) inorganic oxide sol aluminum sol, silicon zirconium antimony wherein amount non-volatile matter component is 5 60 based on total matters (A, B C); process for preparing which comprises (A), adding reaction mixture after completion copolymerization form organic-inorganic complex, mixing complex (B). The above not only can give film being excellent weathering (light) resistance, stain resistance removing properties appearance, water chemical but also environment conservation safeness.