发明申请
- 专利标题： Glass Composition And Process For Producing The Same
- 专利标题（中）： 玻璃组成及其制作方法
-
申请号： US11793171申请日： 2005-12-15
-
公开(公告)号： US20080090717A1公开(公告)日： 2008-04-17
- 发明人: Yukihito Nagashima , Haruki Niida , Junji Kurachi , Akihiro Koyama , Hiromitsu Seto , Kazuhiro Yamamoto , Daisuke Miyabe , Yutaka Senshu
- 申请人： Yukihito Nagashima , Haruki Niida , Junji Kurachi , Akihiro Koyama , Hiromitsu Seto , Kazuhiro Yamamoto , Daisuke Miyabe , Yutaka Senshu
- 申请人地址： JP TOKYO 108-6321
- 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 108-6321
- 优先权： JP2004-364025 20041216; JP2005-235567 20050815
- 国际申请： PCT/JP05/23052 WO 20051215
- 主分类号： C03C3/11
- IPC分类号： C03C3/11
摘要：
The present invention provides a glass composition in which a smaller amount of arsenic oxide or antimony oxide that has a heavy burden on the environment is used and fewer bubbles remain. This glass composition includes, in terms of mass %: 40 to 70% of SiO2, 5 to 20% of B2O3, 10 to 25% of Al2O3, 0 to 5% of MgO (up to and not including 5%), 0 to 20% of CaO, 0 to 20% of SrO, 0 to 10% of BaO, 0 to 1.5% of Li2O, 0 to 1.5% of Na2O, 0 to 1.5% of K2O, and 0 to 1.5% of Cl. The sum of the contents of Li2O, Na2O, and K2O is 0.05 to 1.5 mass %, and the content of K2O is equal to or larger than that of Na2O.
信息查询
