Photo-curable coating compositions for building materials

摘要

A photo-curable coating composition for building materials which comprises (a) an isocyanate-modified epoxy ester obtained by the reaction of an acrylic or methacrylic ester of an epoxy compound having not less than two epoxy groups in the molecule with a polyisocyanate; (b) a photopolymerizable monomer being copolymerizable with the epoxy ester (a); (c) a ketone resin; (d) a photo-sensitizer; and (e) a sensitizing auxiliary.