Curable composition, thermal latent acid catalyst, method of coating, coated article, method of molding and molded article.

摘要

A curable composition comprising (A) a compound having in the molecule two or more specific blocked carboxyl groups; (B) a compound having in the molecule two or more reactive functional groups which can form chemical bonds with the blocked carboxyl groups, and (C) a catalitic component selected from the group sonsisting of a thermal latent acid catalyst which comprises (a) (i) a compound having a epoxy group, (ii) a specific compound having a sulfur atom and (iii) a specific Lewis acid; a thermal latent acid catalyst which comprises (b) (v) a specific compound having at least one selected from the group consisting of a nitrogen atom, an oxygen atom, a phosphorus atom and a sulfur atom, (vi) a specific compound having a halogen atom and (vii) a specific Lewis acid having at least one selected from the group consisting of an aluminium atom, a zinc atom and a tin atom; and a mixture which comprises (c) (viii) a metallic chelate compound and (ix) a specific organic silicon compound or the condensate. A two component curable composition is prepared by mixing (I) a main material composition or a solution thereof comprising the compound (A) and the compound (B) or the self-crosslinkable compound (D), and (II) an acid catalyst or the solution comprising at least one kind selected from the group consisting of a Br phi nsted acid, a Lewis acid and a mixture of a metallic chelate compound and a compound having a silanol group.The curable composition of the invention gives cured products having excellent chemical properties, physical properties, weathering resistance, stain resistance and excellent appearance.