GLAZE Russian patent published in 2007 - IPC C03C8/10 C03C8/12 

FIELD: facing materials, technology of silicates.

SUBSTANCE: invention relates to compositions of fritted glazes. Proposed glaze comprises the following components, wt.-%: SiO₂, 40.0-45.0; Al₂O₃, 3.0-5.0; CaO, 10.0-15.0; MgO, 3.0-7.0; BaO, 4.0-4.0; ZnO, 6.0-8.0; K₂O, 1.5-2.5; B₂O₃, 4.0-6.0; ZrO₂, 4.0-5.0; TiO₂, 4.0-6.0; CdO, 4.5-6.5, and PbO, 4.0-5.0. Invention provides enhancing hardiness of glaze. Proposed composition can be used for applying on ceramic tile and articles of economy-domestic designation.

EFFECT: improved and valuable property of glaze.

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