发明名称 |
Method of forming metal oxide film by using metal alkoxide solution. |
摘要 |
<p>The invention relates to a sol-gel method for forming a metal oxide film, e.g. TiO2 film or TiO2-SiO2 film, on a substrate by applying a solution of at least one metal alkoxide to the substrate to form a sol film on the substrate, drying the sol film to cause it to turn into a gel film by hydrolysis and baking the gel film. According to the invention the viscosity of the metal alkoxide solution is adequately increased, preferably to 3-30 cP at 20 DEG C, by the addition of a combination of a hydroxypropyl cellulose of which 2 wt% aqueous solution has a viscosity of 150-400 cP at 20 DEG C and another hydroxypropyl cellulose of which 2 wt% aqueous solution has a viscosity of 6-10 cP at 20 DEG C. Metal oxide films formed by this method are free from minute cracks and excellent in optical characteristics and durability. By this method it is possible to form a metal oxide film as thick as about 300 nm without repeating the application of the alkoxide solution to the substrate.</p> |
申请公布号 |
EP0433915(A1) |
申请公布日期 |
1991.06.26 |
申请号 |
EP19900124256 |
申请日期 |
1990.12.14 |
申请人 |
CENTRAL GLASS COMPANY, LIMITED |
发明人 |
YAMAZAKI, SEIZI;MAKITA, KENSUKE;MORIGUCHI, YASUO;TANAKA, KATSUTO |
分类号 |
C03C17/25;C01B13/32;C01B33/12;C01G23/04;C23C18/12 |
主分类号 |
C03C17/25 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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