| abstract |
This coating agent contains: a film formation component that comprises a component A which is composed of a urethane (meth)acrylate that has an isocyanuric ring skeleton, a component B which is composed of a tri(meth)acrylate that has an isocyanuric ring skeleton, but does not have a urethane bond, and a component C which is composed of a colloidal silica that comprises a (meth)acryloyl group and a hydrocarbon group having from 3 to 13 carbon atoms; and a component D which is composed of a radical photopolymerization initiator. The content of the component D is from 0.1 part by mass to 10 parts by mass relative to a total of 100 parts by mass of the film formation component. |