Curable composition for paint

Abstract

A curable composition for paint including (A) 10 to 99 parts by weight of a vinyl polymer having a number average molecular weight of not less than 2,000 and at least one silicon atom to which a hydrolyzable group is bonded at an end of the main chain and/or in a side chain thereof, in one molecule, wherein the main chain is substantially a vinyl polymer chain; (B) 1 to 90 parts by weight of a compound containing a carbonyldioxy group which is at least one of (i) a compound containing a hydrolyzable silyl group, the compound having at least one carbonyldioxy group in one molecule and at least one silicon atom to which a hydrolyzable group is bonded, in one molecule, and (ii) a polycarbonate polyol compound having at least one carbonyldioxy group and at least two hydroxyl groups in one molecule; and (C) 0.001 to 10 parts by weight of a curing catalyst on the basis of 100 parts by weight of the components (A) and (B) in total. This curable composition for paint has excellent high solid content and one package storage stability as well as superior scratch resistance and acid resistance.

Dependencies are inferred from the claim text.