| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coating agent which enables to form a coating film having high hardness, high abrasion resistance and strong adhesiveness without requiring a conventional high-temperature treatment even when titanium oxide having high refractive index is used therein, and to provide a coating film having high hardness, high abrasion resistance and strong adhesiveness, and a method for producing the same. <P>SOLUTION: The coating agent for optical instruments is obtained by having one or more titanium sources selected from the group consisting of titanium alkoxides and titanium salts coexistent with a nitrogen-containing organic base and water. The coating agent for optical instruments is also obtained by mixing a hydrolysis solution of one or more titanium sources selected from the group consisting of titanium alkoxides and titanium salts with a nitrogen-containing organic base. <P>COPYRIGHT: (C)2007,JPO&INPIT |
