Powder paint compositions

摘要

A heat-curable powder paint composition comprising a copolymer (A) obtained by radical copolymerization of (a1) a monomer having both an unsaturated double bond and a non-radical-polymerizable reactive functional group (e.g. glycidyl or hydroxyl group), (a2) a monomer having no reactive functional group other than an unsaturated double bond, and (a3) a silicone macromer having essentially no reactive functional group other than an unsaturated double bond in a specific ratio; and curing agent (B). The paint composition of this invention can achieve excellent performance simultaneously with respect to storage stability and coating film properties (such as appearance characteristics, physical characteristics and chemical characteristics).