| abstract |
(57) [Summary] [Structure] (A) 100 parts by weight of an organosilicon compound in which a non-hydrolyzable group having an epoxy group or a (meth) acryloyl group and at least one hydrolyzable group are introduced, ( B) 60 to 130 parts by weight of silica sol dispersed in a colloidal form in terms of solid content, (C) C 4 to C having at least one mercapto group or episulfide group in one molecule. A coating composition containing 30 aliphatic or alicyclic, or 0.01 to 8 parts by weight of a C 6 to C 15 aromatic compound. [Effect] By using this coating composition, a hard coat layer having adhesiveness can be provided on the plastic substrate, and the abrasion resistance of the surface can be improved. |