GLASS Russian patent published in 2007 - IPC C03C3/74 

FIELD: glass industry.

SUBSTANCE: invention relates to glass compositions used in electronic technique. Proposed glass comprises the following components, wt.-%: SiO₂, 15.0-27.0; PbO, 40.0-45.0; K₂O, 1.0-3.0; ZnO, 1.0-3.0; B₂O₃, 8.0-12.0; Al₂O₃, 1.0-3.0; Li₂O, 3.0-8.0; Fe₂O₃, 0.3-0.7; Sb₂O₃, 0.3-0.7; Mn₂O₃, 1.0-2.0; NiO, 1.0-2.0; BaO, 3.0-8.0, and Cr₂O₃, 3.0-8.0. Invention provides decreasing the soldering temperature value of glass with metal.

EFFECT: improved and valuable property of glass.

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