发明名称 |
High-purity quartz powder, process for producing the same, and glass molding |
摘要 |
Subjects for the invention are to obtain a quartz powder having a high purity and high quality and a process for producing the same and to obtain a glass molding formed by melting and molding the powder and extremely reduced in bubble inclusion. The invention provides a quartz powder, preferably a synthetic quartz powder obtained by the sol-gel method, which, upon heating from room temperature to 1,700° C., generates gases in which the amount of CO is 300 nl/g or smaller and the amount of CO<SUB>2 </SUB>is 30 nl/g or smaller.
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申请公布号 |
US7063826(B2) |
申请公布日期 |
2006.06.20 |
申请号 |
US20040758395 |
申请日期 |
2004.01.16 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
KATSURO YOSHIO;YAMAHARA KEIJI;YAMAGUCHI TAKASHI;MORI YUTAKA |
分类号 |
C01B33/158;C01B33/18;C03B8/02;C03B19/01;C03B19/09;C03B19/10;C03C3/06 |
主分类号 |
C01B33/158 |
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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