Grey Glass Having Low Light Transmission

Grey Glass Having Low Light Transmission

The present invention describes a low light transmission gray glass formed from a composition of soda-silica-calcium glass and a dye. The dye includes Fe2O3 from 1.65 to 3.0%; from 15 to 40% ferrous (% reduction); 0.28 to 1.2% FeO (expressed as Fe2O3); Co3O4 from 0.030 to 0.040%; Selenium from 0.002...

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1. Verfasser: Cid Aguilar, José Guadalupe
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Sprache:eng
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CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
METALLURGY
MINERAL OR SLAG WOOL
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
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creator Cid Aguilar, José Guadalupe
description The present invention describes a low light transmission gray glass formed from a composition of soda-silica-calcium glass and a dye. The dye includes Fe2O3 from 1.65 to 3.0%; from 15 to 40% ferrous (% reduction); 0.28 to 1.2% FeO (expressed as Fe2O3); Co3O4 from 0.030 to 0.040%; Selenium from 0.0020 to 0.010%; CuO from 0.00050 to 0.050%; and, TiO2 from 0.01 to 1%. The glass has a light transmission of illuminant A (TLA) no greater than 15%, a direct solar energy transmission (TDS) no greater than 14%, a near infrared radiation transmission (TIR) no greater than 14%, an ultraviolet radiation transmission (TUV) no greater than 8%, and a total solar energy transmission (TTS) no greater than 38%, a purity no greater than 50% and a dominant wavelength of 480-590 nm when it has a thickness of 3.85 mm.
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The dye includes Fe2O3 from 1.65 to 3.0%; from 15 to 40% ferrous (% reduction); 0.28 to 1.2% FeO (expressed as Fe2O3); Co3O4 from 0.030 to 0.040%; Selenium from 0.0020 to 0.010%; CuO from 0.00050 to 0.050%; and, TiO2 from 0.01 to 1%. 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subjects CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
METALLURGY
MINERAL OR SLAG WOOL
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
title Grey Glass Having Low Light Transmission
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