Radiation-curable coating compositions that form transparent, abrasion-resistant tintable coatings

A tinted article made by applying to at least one surface of a substrate a tintable, photocurable coating composition which forms a transparent, abrasion-resistant coating upon curing, said coating composition comprising (a) an effective abrasion resistant amount of colloidal silica;

• (b) from about 0.05 to about 5 parts per each part colloidal silica of a hydrolysis product of glycidoxypropyltrimethoxysilane;
• (c) from about 0.1 to about 1.0 parts per each part colloidal silica of a triglycidyl ether;
• and (d) a catalytic amount of triphenylsulfonium hexafluoroantimonate;
• curing said coating composition on the surface of said substrate by exposing said composition to high intensity irradiation for a period of time sufficient to form a transparent, tintable, abrasion-resistant coating;
• and immersing the coated surface of the substrate in a dye bath for a period of time sufficient for the coating to absorb or transmit to the substrate a desired amount of dye.

A tinted article made by applying to at least one surface of a substrate a tintable, photocurable coating composition which forms a transparent, abrasion-resistant coating upon curing, said coating composition comprising:

• (a) an effective abrasion-resistant amount of colloidal silica;
• (b) from about 0.05 to about 5 parts per each part colloidal silica of 3-glycidoxypropyltrimethoxysilane;
• (c) from about 0.1 to about 1.0 parts per each part colloidal silica of a triglycidyl ether;
• (d) from about 0.05 to about 1.5 parts per each part colloidal silica of trimethylolpropane triacrylate;
• and (e) a catalytic amount of benzophenone and triphenylsulfonium hexafluoroantimonate;
• curing said coating composition on the surface of said substrate by exposing said composition to high intensity irradiation for a period of time sufficient to form a transparent, tintable, abrasion-resistant coating;
• and immersing the coated surface of the substrate in a dye bath for a period of time sufficient for the coating to absorb or transmit to the substrate a desired amount of dye.

A tinted article made by applying to at least one surface of a substrate a tintable, photocurable coating composition which forms a transparent, abrasion-resistant coating upon curing, said coating composition comprising:

• (a) an effective abrasion-resistant amount of colloidal silica;
• (b) from about 0.05 to about 5 parts per each part colloidal silica of gramma-methacryloxypropyltrimethoxysilane;
• (c) from about 0.1 to about 1.0 parts per each part colloidal silica of a mixture of a triglycidyl ether and 1,1,2,2-tetraallyloxyethane;
• and (d) a catalytic amount of triphenylsulfonium hexafluoroantimonate and benzophenone;
• curing said coating composition on the surface of said substrate by exposing said composition to high intensity irradiation for a period of time sufficient to form a transparent, tintable, abrasion-resistant coating;
• and immersing the coated surface of the substrate in a dye bath for a period of time sufficient for the coating to absorb or transmit to the substrate a desired amount of dye.