发明名称 |
Low PbO-containing glass for electrical devices |
摘要 |
The invention relates to the glass industry. It concerns glasses of low lead content characterized in being prepared from glass forming batches consisting essentially, in weight percent on the oxide basis of: -SiO2 66-70 BaO 5-9.5 -B2O3 0-3 PbO 1.5-5 -Al2O3 2-4.5 MgO + CaO 0-3.5 -Li2O 0.5-1.6 As2O3 + Sb2O3 0-1 -Na2O 7-9.5 BaO + MgO + CaO 8-11 -K2O 5-8.5 Li2O + Na2O + K2O 14.5-17 -Na2O:K2O <1.7 - A specific application of the invention is the fabrication of electrical devices such as light bulbs.
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申请公布号 |
US4608351(A) |
申请公布日期 |
1986.08.26 |
申请号 |
US19850698408 |
申请日期 |
1985.02.05 |
申请人 |
CORNING GLASS WORKS |
发明人 |
BOUDOT, JEAN E.;MAZEAU, JEAN P. |
分类号 |
C03C3/102;C03C3/105;(IPC1-7):C03C3/105;C03C3/108 |
主分类号 |
C03C3/102 |
代理机构 |
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代理人 |
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地址 |
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