A
coating composition which comprises (A) a resin having a
glass transition temperature of 50 to 120 DEG C., a number average molecular weight of 2,000 to 100,000, a
hydroxyl value of 50 to 150 mgKOH / g and an
acid value of 1 to 25 mgKOH / g, which is produced by copolymerizing 10 to 90 percent by weight of (a) a (
meth)
acrylic acid ester of a C1 to C12
alkyl alcohol, 10 to 50 weight % of (b) a first polymerizable
double bond-containing and hydroxyl group-containing
monomer, 0.1 to 10 weight % of (c) a polymerizable
double bond-containing and carboxyl group-containing
monomer, 0 to 20 weight % of (d)
styrene, 0 to 20 weight % of (e)
acrylonitrile and 0 to 10 weight of (f) a second polymerizable
double bond-containing
monomer, (B) at least one compound selected from the group consisting of a polyisocyanate compound having two or more unblocked
isocyanate groups and / or blocked
isocyanate groups in the molecule and an aminoplast resin, (C) a dispersing component of at least one
inorganic oxide sol selected from the group consisting of an aluminum
oxide sol, a silica
sol, a
zirconium oxide sol and an
antimony oxide sol, wherein an amount of a nonvolatile matter of component (C) is 5 to 60 percent by weight based on a total amount of nonvolatile matter of resin (A), compound (B) and component (C). The
coating composition provides cured films having excellent
weathering resistance, light resistance,
stain resistance,
stain-removing property,
chemical resistance,
moisture resistance and appearance and is
environmentally friendly and safe.