NON-FRITTED GLAZE Russian patent published in 2008 - IPC C03C8/12 

FIELD: chemistry.

SUBSTANCE: invention concerns silicate technologies and glaze compositions, which can be used in ceramic facing tile, Dutch tile and domestic utensils coating. The non-fritted glaze contains SiO₂, Al₂O₃, CaO, MgO, Na₂O, K₂O, B₂O₃, ZrO₂, ZnO, TiO₂ at the following component ratio, in wt %: SiO₂ - 55.0-60.0; Al₂O₃ - 2.0-4.0; CaO - 2.0-4.0; MgO - 12.0-14.0; Na₂O - 1.0-2.0; K₂O - 1.0-2.0; B₂O₃ - 6.0-8.0; ZrO₂ - 6.0-8.0; ZnO - 4.0-6.0; TiO₂ - 1.0-2.0.

EFFECT: improved thermal resistance of glaze.

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