| abstract |
The present invention relates to a method for producing titaniumnoxide (TiO 2 )-tin oxide (SnO 2 ) composite sol, a titanium oxide (TiO 2 )-zirconiumnoxide (ZrO 2 )-tin oxide (SnO 2 ) composite sol, and a titaniumnoxide (TiO 2 )-cerium oxide (CeO 2 )-tin oxide (SnO 2 ) composite sol.nFurther, the present invention relates to a coating composition containingnany of the above-mentioned composite sols for forming coating films thatnare excellent in marring resistance, surface hardness, wearing resistance,ntransparency, heat resistance, light- resistant, weatherability, or waternresistance on optical elements such as lenses for glasses and cameras,nautomotive windowpane, or optical filters attached to liquid-crystalndisplays, plasma displays, etc. and to optical elements having a cured filmnof the coating composition on the surfaces. |