GLAZE Russian patent published in 2008 - IPC C03C8/04 C04B41/86 

FIELD: chemistry.

SUBSTANCE: invention concerns fritted glazes, which can be used for the coating of facing plates, household ceramics. Glaze contains SiO₂ AI₂O₃, Na₂O, K₂O_, CaO, MgO, TiO₂, ZrO₂, B₂O₃, ZnO and additionally BaO, Sb₂O₃, CuO with the following proportions of components, mass%: SiO₂ 42.5-46.5, Al₂O₃ 8.0-10.0, Na₂O 2.0-3.0, K₂O 2.0-3.0, CaO 3.0-5.0, MgO 1.0-2.0, TiO₂ 1.0-2.0, ZrO₂ 8.0-10.0, B₂O₃ 15.0-20.0, ZnO 3.0-5.0, BaO 2.0-3.0, Sb₂O₃ 0.5-1.0, CuO 0.5-1.0.

EFFECT: increase of the heat resistance of glaze.

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