PAINT COMPOSITIONS, A METHOD OF PAINT FINISHING AND PAINTED OBJECTS

摘要

To provide paint compositions and a method of finish painting with which paint films which have excellent car-wash scratching resistance, acid resistance, staining resistance, water resistance, weather resistance and appearance can be obtained, and painted objects. [Means of Resolution] A paint composition which has as essential components a hydroxyl group containing resin (A) of which the hydroxyl group value including the hydroxyl groups originating from a 2 , 2-dimethylolalkanoic acid is from 200 to 400 mgKOH/g and which contains in the resin solid fraction less than 25 mass% of structural units based on a lactone compound, a hydroxyl group containing resin (B) of which the hydroxyl group value is from 50 to 200 mgKOH/g and which contains in the resin solid fraction from 25 to 75 mass% of structural units based on a lactone compound, and a crosslinking agent (C) which contains in one molecule at least two or more functional groups which react with hydroxyl groups, in which the proportions of the hydroxyl group containing resin (A) and the hydroxyl group containing resin (B) are, as the resin solid fraction mass ratio (A) / (B) , from 90/10 to 10/90.