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CN101616877B 灯用玻璃组合物、灯用玻璃部件、灯和照明设备 失效 - 权利终止

灯用玻璃组合物、灯用玻璃部件、灯和照明设备
摘要：
玻璃组合物，其包含以氧化物表示的以下成分：65wt％～75wt％的SiO2；1wt％～5wt％的Al2O3；0.5wt％～5wt％的Li2O；5wt％～12wt％的Na2O；3wt％～7wt％的K2O；12wt％～18wt％的Li2O+Na2O+K2O；2.1wt％～7wt％的MgO；2wt％～7wt％的CaO；0wt％～0.9wt％的SrO；7.1wt％～12wt％的BaO；并且基本没有PbO。灯用玻璃组合物基本无铅，具有适合照明目的的电绝缘，并进一步降低了失去透明性的风险。
摘要（英）：

A glass composition contains the following constituents expressed in terms of oxides: 65wt% to 75wt% of SiO2; 1wt% to 5wt% of Al2O3; 0.5wt% to 5wt% of Li2O; 5wt% to 12wt% of Na2O; 3wt% to 7wt% of K2O; 12wt% to 18wt% of Li2O + Na2O + K2O; 2.1wt% to 7wt% of MgO; 2wt% to 7wt% of CaO; 0wt% to 0.9wt% of SrO; 7.1wt% to 12wt% of BaO; and substantially no PbO. The glass composition for a lamp is substantially lead-free, has an electrical insulation suitable for an illumination purpose, and further reduces the risk of devitrification.

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