发明授权
- 专利标题： Method of preparing silica glass
- 专利标题（中）： 制备石英玻璃的方法
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申请号： US969540申请日： 1992-10-30
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公开(公告)号： US5236483A公开(公告)日： 1993-08-17
- 发明人: Satoru Miyashita , Sadao Kanbe , Motoyuki Toki , Tetsuhiko Takeuchi , Hirohito Kitabayashi
- 申请人： Satoru Miyashita , Sadao Kanbe , Motoyuki Toki , Tetsuhiko Takeuchi , Hirohito Kitabayashi
- 申请人地址： JPX Tokyo
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX60-156669 19850716
- 主分类号： C03B19/12
- IPC分类号： C03B19/12 ; C03B37/016
摘要：
A method for preparing a silica glass article of improved purity is provided. The article is prepared by a sol-gel method and is then heat treated to a selected temperature between about 1500.degree. and 2200.degree. C. and maintained at the selected temperature for a predetermined period of time sufficient to remove silica crystals, inclusions, microcracks and bubbles. The resulting silica glass articles have improved purity and can be used as photomask substrates or as preforms for optical fibers.
公开/授权文献
- US6048217A Connecting device for high-voltage cable 公开/授权日：2000-04-11
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