| abstract |
The present invention relates to a siloxane coating composition with improved adhesion and colorability, and more particularly, to an organic-inorganic sol prepared by performing a sol-gel reaction at a high temperature using an organosilane, an amino group, a carboxyl group, and a mercapto group. The present invention relates to a siloxane-based coating composition prepared by adding a compound having at least one functional group selected from the group consisting of a methylol group, an anhydride group and an isocyanate group, a method for preparing the same, and an optical lens produced therefrom.n n n The siloxane-based coating composition has an increased colorability as the sol-gel reaction is performed at an elevated temperature, and adhesion to the substrate is improved by using a compound including a functional group capable of hydrogen bonding and condensation reaction. In particular, it is preferably applied as a coating film on the surface of plastic lenses such as industrial safety glasses or leisure goggles. |