GLASE Russian patent published in 2011 - IPC C03C8/06 

FIELD: chemistry.

SUBSTANCE: invention relates to glase compositions for depositing on ceramic tiles, roofing tiles, objects for decorative and art purposes. The glase contains the following in pts. wt: quartz sand 50-55; bichromate 2-3; fluorspar 2-3; pyrolusite 2-3; chalk 10-15; calcined soda 26.5-28. Components of the mixture are fused at temperature 1400°C. The obtained molten glass is granulated in water, ground and glase slurry is prepared. Articles coated with the glase are burnt at 900°C.

EFFECT: glase is environmentally safe.

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