| abstract |
(57) [Summary] [Purpose] Development of a wear-resistant coating material composition capable of forming a crosslinked cured coating by irradiation with ultraviolet rays and a method for producing a coating material used for the same. (1) When colloidal silica fine particles and a hydrolyzate of a silane compound having a (meth) acryloyloxy group or a vinyl group are present in the presence of a polar solvent, the dehydration amount becomes 30 to 80% of the theoretical value. The colloidal silica dispersion medium is replaced with a non-polar solvent, and the solid content in the non-polar solvent is 30- In the state of 90% by weight, further condensation reaction is carried out to produce an ultraviolet curable coating material. (2) The coating material obtained by the production method of (1) above is (meta) An abrasion-resistant coating material composition is obtained by blending with an acrylate polyfunctional compound and a photopolymerization initiator. |