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1. 发明授权

US5559061A Gem comprised of a glass based on silicon oxide and calcium oxide 失效
标题翻译：宝石由基于氧化硅和氧化钙的玻璃构成
公开(公告)号：US5559061A
公开(公告)日：1996-09-24
申请号：US557518
申请日：1995-11-14
申请人： Norbert Bilek , Wolfgang Porcham , Michael Schlamadinger , Gerold Sprachmann
发明人： Norbert Bilek , Wolfgang Porcham , Michael Schlamadinger , Gerold Sprachmann
IPC分类号： C03C3/083 , C03C3/087 , C03C3/095 , C03C3/105 , C03C3/108 , C03C3/15 , C03C3/155 , C03C4/02
CPC分类号： C03C3/087 , C03C4/02
摘要： A glass composition substantially comprising silicon oxide, calcium oxide and aluminum oxide, and its use for producing gems.
摘要翻译：基本上包含氧化硅，氧化钙和氧化铝的玻璃组合物及其制备宝石的用途。

2. 发明申请

US20070032367A1 LEAD- AND BARIUM-FREE CRYSTAL GLASS 有权
标题翻译： LEAD-和BALIUM-FREE水晶玻璃
公开(公告)号：US20070032367A1
公开(公告)日：2007-02-08
申请号：US11522311
申请日：2006-09-18
申请人： Gerold Sprachmann , Johannes Maier
发明人： Gerold Sprachmann , Johannes Maier
IPC分类号： C03C3/095 , C03C3/093
CPC分类号： C03C4/0028 , C03C3/093 , C03C3/095 , C03C3/097
摘要： A lead- and barium-free crystal glass having a refractive index of at least 1.55, with in % by weight, more than 50% and less than 60% SiO2, more than 0.6% and less than 4% B2O3, less than 3% K2O, more than 12% and less than 15% Na2O, more than 4% and less than 11% CaO, more than 0.25% and less than 5% Al2O3, less than 2% MgO, and between 8 and 16% ZnO, with the proviso that the total content of the oxides of Pb, Ba and As is below 0.1%, the total content of the oxides of Ti and La is below 5% and the total content of the oxides of Nb, Ta, Yb, Y, W, Bi and Zr is below 5%, wherein at most 1% oxides of Nb, Ta and Yb respectively and 3% of the oxides of Y, W, Bi and Zr respectively are included.
摘要翻译：折射率为至少1.55的铅和钡的晶体玻璃，其重量％，大于50％且小于60％的SiO 2，大于0.6％且小于 4％B 2 O 3，小于3％K 2 O，大于12％且小于15％的Na 2 O，超过4％且小于11％的CaO，大于0.25％且小于5％的Al 2 O 3 O 3，小于2％的MgO ，和8〜16％的ZnO，条件是Pb，Ba和As的氧化物的总含量低于0.1％，Ti和La的氧化物的总含量低于5％，总含量 Nb，Ta，Yb，Y，W，Bi和Zr的氧化物分别低于5％，其中分别含有Nb，Ta和Yb的至多1％的氧化物和分别为Y，W，Bi和Zr的氧化物的3％。

3. 发明授权

US07202188B2 Lead- and barium-free crystal glass 有权
标题翻译：无铅和无钡水晶玻璃
公开(公告)号：US07202188B2
公开(公告)日：2007-04-10
申请号：US11522311
申请日：2006-09-18
申请人： Gerold Sprachmann , Johannes Maier
发明人： Gerold Sprachmann , Johannes Maier
IPC分类号： C03C3/093 , C03C3/095
CPC分类号： C03C4/0028 , C03C3/093 , C03C3/095 , C03C3/097
摘要： A lead- and barium-free crystal glass having a refractive index of at least 1.55, with in % by weight, more than 50% and less than 60% SiO2, more than 0.6% and less than 4% B2O3, less than 3% K2O, more than 12% and less than 15% Na2O, more than 4% and less than 11% CaO, more than 0.25% and less than 5% Al2O3, less than 2% MgO, and between 8 and 16% ZnO, with the proviso that the total content of the oxides of Pb, Ba and As is below 0.1%, the total content of the oxides of Ti and La is below 5% and the total content of the oxides of Nb, Ta, Yb, Y, W, Bi and Zr is below 5%, wherein at most 1% oxides of Nb, Ta and Yb respectively and 3% of the oxides of Y, W, Bi and Zr respectively are included.
摘要翻译：折射率为至少1.55的铅和钡的晶体玻璃，其重量％，大于50％且小于60％的SiO 2，大于0.6％且小于 4％B 2 O 3，小于3％K 2 O，大于12％且小于15％的Na 2 O，超过4％且小于11％的CaO，大于0.25％且小于5％的Al 2 O 3 O 3，小于2％的MgO ，和8〜16％的ZnO，条件是Pb，Ba和As的氧化物的总含量低于0.1％，Ti和La的氧化物的总含量低于5％，总含量 Nb，Ta，Yb，Y，W，Bi和Zr的氧化物分别低于5％，其中分别含有Nb，Ta和Yb的至多1％的氧化物和分别为Y，W，Bi和Zr的氧化物的3％。

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