COMPOSITION OF FILM-FORMING SOLUTION FOR PREPARING COLOR OXIDE COVER ON GLASS AND CERAMICS Russian patent published in 2004 - IPC

FIELD: chemical technology, glass industry. SUBSTANCE: invention relates to surface glass treatment by applying covers made of liquid phase, namely to film-forming solutions based on metal alkoxides and used for preparing color metal oxide covers. Invention proposes composition of film-forming solution for preparing color oxide covers on glass and ceramics based on metal alkoxide spirituous solutions. Proposed composition in preparing green color cover comprises aluminum alkoxide and cobalt carboxylate taken in the mole ratio = 2: 1, respectively, with addition of 2 moles of ortho-formic acid ethyl ester or ortho-carbonic acid ethyl ester per 1 mole of aluminum alkoxide. In preparing gray color cover the composition comprises aluminum alkoxide, cobalt carboxylate and nickel carboxylate taken in the mole ratio = 2: 0.75: 0.25, respectively, respectively, with addition of 0.25 mole of ortho- phosphoric acid triethyl ester and 2 moles of ortho-formic acid ethyl ester or ortho-carbonic acid ethyl ester per 1 mole of aluminum alkoxide. These special properties of solutions based on heterometallic complexes provide achievement of technical effect: improved technological effectiveness of method and providing in preparing qualitative equal-thickness cover on large-scale surfaces, preparing the required light reflection and transmitting coefficient values. Invention can be used for preparing color metal oxide covers and toning large- -scale glass, for applying decorative covers, pictures on ceramic articles. EFFECT: improved preparing method, improved and valuable properties of composition. 3 cl, 2 tbl, 2 ex