FINE COLORED CHEMICALLY STRENGTHENED GLASS Russian patent published in 2020 - IPC C03C3/85 C03C3/87 C03C4/02 C03C21/00 

Abstract RU 2736837 C2

FIELD: glass industry.

SUBSTANCE: invention relates to thin colored chemically strengthened glass. Laminated glazing includes at least first lime-sodium glass sheet, intermediate polymer layer and second glass sheet. Second sheet is a colored glass sheet from an aluminosilicate composition chemically reinforced by ion exchange. It contains the following oxides with content by weight lying in the ranges: SiO2 from 59.20 to 68.00 %, Al2O3 from 2.00 to 8.00 %, MgO from 6.00 to 9.00 %, if content of Al2O3 ranges from 5.00 to 8.00 %, and if the ratio SiO2/Al2O3 is greater than or equal to 7.8 or from 8.00 to 10.00 %, if the content of Al2O3 is from 2.00 to 5.00 %, and if ratio SiO2/Al2O3 is greater than or equal to 24, Na2O from 9.00 to 16.00 %, K2O from 5.00 to 11.00 %, B2O3 from 0 to 3.00 %, CaO from 0 to 1.00 %, and the following dyes with content by weight lying in the ranges: Fe2O3 from 0.05 to 6.00 %, CoO from 0 to 2.00 %, NiO from 0 to 1.00 %, Se from 0 to 0.10 %. Colored glass is characterized by a redox coefficient of 0.10 to 0.65.

EFFECT: technical result is obtaining a glass composition, which is simultaneously colored and suitable for both chemical quenching and conferencing simultaneously with a lime-sodium glass sheet.

14 cl, 3 tbl

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RU 2 736 837 C2

Authors

Claireaux, Corinne

Fredy, Carole

Cintora-Gonzalez, Octavio

Dates

2020-11-20Published

2016-12-16Filed