Abstract: The present invention relates to a neutral grey glass composition which has a basic composition containing the following main coloring agents: 0.40 to 0.80% of Fe2O3; 0.05 to 2.0% of TiO2; 0.2 to 2.5% of Er2O3; 20 to 200 ppm of CuO; 0.08% to 0 0.1% charcoal; and 15% to 50% of ferrous (redox), in which the glass has light transmission “A” greater than 65%, solar transmission (TS) <55%, and ultraviolet transmission <40%, having color values a*=?4 to 3 and b*=4 to ?2.

Abstract: The present invention relates to a neutral grey glass composition which has a basic composition containing the following main coloring agents: 0.40 to 0.80% of Fe2O3; 0.05 to 2.0% of TiO2; 0.2 to 2.5% of Er2O3; 20 to 200 ppm of CuO; 0.08% to 0 0.1% charcoal; and 15% to 50% of ferrous (redox), in which the glass has light transmission “A” greater than 65%, solar transmission (TS) <55%, and ultraviolet transmission <40%, having color values a*=?4 to 3 and b*=4 to ?2.

Abstract: The present invention provides a glass composition having a base glass composition, comprising, in weight percentage, from about 0.005 to about 0.08% wt of ferric oxide, from 0.00002 to about 0.0004% wt of Se, from about 0.00003 to about 0.0010% wt of Co3O4, from 0 to about 0.01% wt of CuO, from about 0 to about 0.6 of CeO2, from 0.02 to about 1 of TiO2, and from about 0 to about 2 of NaNO3. The glass having a visible light transmission of at least 87%; a ultraviolet radiation transmittance less than 85%; and a solar direct transmittance of no more than 90%.

Abstract: The present invention provides a dark green colored glass composition having a soda-lime-silica glass composition, wherein the coloring compounds comprises in weight percentage: from 0.71 to 1.50% of total iron expressed as Fe2O3; from 22 to 30% of ferrous-ferric ratio and from 0.15 to 0.50% of expressed as FeO; from 0.10 to 0.20% of SO3 without affecting the refining properties and ability of the SO3 to eliminate bubbles; about 0 to 1.0 wt. % TiO2; about 0.0004 to 0.03 wt. % Cr2O3; and also 0.0004 to 0.015 wt. % CuO.

Abstract: The present invention provides a dark green colored glass composition having a soda-lime-silica glass composition, wherein the coloring compounds comprises in weight percentage: from 0.71 to 1.50% of total iron expressed as Fe2O3; from 22 to 30% of ferrous-ferric ratio and from 0.15 to 0.50% of expressed as FeO; from 0.10 to 0.20% of SO3 without affecting the refining properties and ability of the SO3 to eliminate bubbles; about 0 to 1.0 wt. % TiO2; about 0.0004 to 0.03 wt. % Cr2O3; and also 0.0004 to 0.015 wt. % CuO.

Abstract: The present invention is to provide a neutral gray colored glass composition that has a soda-lime-silica glass base composition containing as major colorants 0.30 to 0.70% by weight Fe2O3; 0 to 30 ppm of Co3O4; 1 to 20 ppm of Se; and 20 to 200 ppm of CuO. The glass provides an illuminant “A” light transmission greater of 65%, a total solar energy transmittance of less than or equal to 60%, a solar ultraviolet transmittance of less than 46%; a dominant wavelength from 490 nm to 600; and an excitation purity of less than 6.

Abstract: The is a colorless glass composition having a base glass composition, comprising, in weight percentage, from about 0.005 to about 0.08% wt of ferric oxide, from 0.00002 to about 0.0004% wt of Se, from about 0.00003 to about 0.0010% wt of Co3O4, from 0 to about 0.01% wt of CuO, from about 0 to about 0.6 of CeO2, from 0.02 to about 1 of TiO2, and from about 0 to about 2 of NaNO3. The glass having a visible light transmission of at least 87%; a ultraviolet radiation transmittance less than 85%; and a solar direct transmittance of no more than 90%.

Abstract: The present invention is to provide a neutral gray colored glass composition that has a soda-lime-silica glass base composition containing as major colorants 0.30 to 0.70% by weight Fe2O3; 0 to 30 ppm of Co3O4; 1 to 20 ppm of Se; and 20 to 200 ppm of CuO. The glass provides an illuminant “A” light transmission greater of 65%, a total solar energy transmittance of less than or equal to 60%, a solar ultraviolet transmittance of less than 46%; a dominant wavelength from 490 nm to 600; and an excitation purity of less than 6.