Curable coating composition

摘要

The invention relates to a curable coating composition comprising: (a) a hydroxyl-containing polyester resin having a solubility parameter in the range of 10.0 to 12.0, (b) a polyepoxide, (c) a silicon compound having 1 to 20 silicon atoms in one molecule and represented by the rational formula SiO(4-(a+b))/2(OR<1>)a(OR<2>)b wherein R<1> is an alkyl group having 1 to 3 carbon atoms, or a hydrogen atom, R<2> is an aryl group, an aralkyl group, or a monovalent hydrocarbon group containing an ether linkage and/or ester linkage and having 4 to 24 carbon atoms, a represents a number between 0.10 to 3.95 and b represents a number between 0.05 and 1.95, provided that a + b = 4 or less, (d) at least one chelate compound selected from the group consisting of aluminum chelate compounds, titanium chelate compounds, zirconium chelate compounds and tin chelate compounds, and (e) an organic solvent.