公开(公告)号：US20100273635A1

公开(公告)日：2010-10-28

申请号：US12810130

申请日：2008-12-22

申请人： Tatsuya Tsuzuki ,  Naoki Mitamura

发明人： Tatsuya Tsuzuki ,  Naoki Mitamura

IPC分类号： C03C3/087

CPC分类号： C03C3/087

摘要： Disclosed is a glass composition including 60 to 70% by mass of SiO2, 0.5 to 3.0% by mass of Al2O3, 2 to 8% by mass of Na2O, 5 to 15% by mass of K2O, 8 to 13% by mass of MgO, 0 to 5% by mass of CaO, 0 to 8% by mass of SrO and 0.5 to 5% by mass of ZrO2, and substantially excluding BaO and B2O3, wherein a total amount of Na2O and K2O is 8 to 18% by mass, and a total amount of MgO, CaO and SrO is 10 to 22% by mass.

摘要翻译： 公开了包含60〜70质量％的SiO 2，0.5〜3.0质量％的Al 2 O 3，2〜8质量％的Na 2 O，5〜15质量％的K 2 O，8〜13质量％的MgO ，0〜5质量％的CaO，0〜8质量％的SrO和0.5〜5质量％的ZrO 2，并且实质上不包括BaO和B 2 O 3，其中Na 2 O和K 2 O的总量为8〜18质量％ ，MgO，CaO，SrO的总量为10〜22质量％。