GLASS (VERSIONS) Russian patent published in 2012 - IPC C03C3/64 

FIELD: construction.

SUBSTANCE: composition versions are proposed. Glass may contain, wt %: SiO₂ 7.3-7.5; CaO 4.5-4.8; Na₂O 14.7-14.8; CdO 1.25-1.5; Se 0.4-0.5; S' 0.1-0.15; B₂O₃ 71.0-71.5. Glass may contain, wt %: SiO₂ 7.3-7.5; CaO 4.6-4.8; Na₂O 14.6-14.8; CdO 1.3-1.5; B₂O₃ 70.8-71.0; Ag and/or Au 0.6-1.0. Glass may contain, wt %: SiO₂ 7.3-7.5; CaO 4.6-4.8; Na₂O 14.6-14.8; CdO 1.4-1.5; B₂O₃ 70.7-71.0; MnO₂ 0.8-1.0. Boiling temperature makes 900-1200°C.

EFFECT: reduced temperature of glass boiling.

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