GLASS Russian patent published in 2008 - IPC C03C3/89 

FIELD: glass industry.

SUBSTANCE: invention relates to glass composition and can be used as finishing material in building, production of dishware and articles of decorative-artistic designation. Proposed glass comprises the following components, wt.-%: SiO₂, 58.0-60.0; BaO, 2.0-6.0; CaO, 6.0-8.0; Na₂O, 13.0-15.0; K₂O, 2.0-6.0; MnO₂, 0.5-1.5; B₂O₃, 4.0-5.5, and TiO₂, 6.0-8.0. Invention provides increasing refraction coefficient and microhardness index of glass.

EFFECT: improved and valuable properties of glass.

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