GLAZE Russian patent published in 2007 - IPC C03C8/12 

FIELD: compositions of nonfritted glazes.

SUBSTANCE: invention relates to compositions of nonfritted glazes used in manufacturing face tiles. Proposed glaze comprises the following components, wt.-%: SiO₂, 45.0-50.0; Al₂O₃, 1.0-3.0; CaO, 6.0-10.0; MgO, 1.0-3.0; K₂O, 2.0-4.0; ZnO, 3.0-5.0; ZrO₂, 1.0-2.0; B₂O₃, 10.0-15.0; BaO, 5.0-7.0; CaF₂, 5.0-10.0, and TiO₂, 5.0-7.0. Invention provides enhancing resistance of glaze to cold, whiteness and luster.

EFFECT: improved and valuable properties of glaze.

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