发明申请
- 专利标题： Glass composition and process for producing glass composition
- 专利标题（中）： 玻璃组合物和玻璃组合物生产方法
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申请号： US11990355申请日： 2006-08-04
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公开(公告)号： US20090131238A1公开(公告)日： 2009-05-21
- 发明人: Shoichi Kishimoto , Haruki Niida , Akihiro Koyama , Yukihito Nagashima
- 申请人： Shoichi Kishimoto , Haruki Niida , Akihiro Koyama , Yukihito Nagashima
- 申请人地址： JP Tokyo
- 专利权人： Nippon Sheet Glass Company, Limited
- 当前专利权人： Nippon Sheet Glass Company, Limited
- 当前专利权人地址： JP Tokyo
- 优先权： JP2005-235568 20050815; JP2005-235569 20050815
- 国际申请： PCT/JP2006/315535 WO 20060804
- 主分类号： C03C3/11
- IPC分类号： C03C3/11
摘要：
A glass composition which is reduced in the amount of residual bubbles and is produced using smaller amounts of an environmentally unfriendly component such as arsenic oxide and antimony oxide. This glass composition contains, in terms of mass %: 40-70% SiO2; 5-20% B2O3; 10-25% Al2O3; 0-10% MgO; 0-20% CaO; 0-20% SrO; 0-10% BaO; 0-0.5% Li2O; 0-1.0% Na2O; 0-1.5% K2O; and 0-1.5%, excluding 0%, Cl, Li2O+Na2O+K2O exceeding 0.06%. The glass composition can be produced suitably using, for example, a chloride as part of the raw glass materials.
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