Glass is provided so as to have high visible transmission and/or fairly clear or neutral color. In certain example embodiments, the glass may include a base glass (e.g., soda lime silica base glass) and, in addition, by weight percentage, from 0.01 to 0.30% total iron (expressed as Fe2O3). The glass
Glass is provided so as to have high visible transmission and/or fairly clear or neutral color. In certain example embodiments, the glass may include a base glass (e.g., soda lime silica base glass) and, in addition, by weight percentage, from 0.01 to 0.30% total iron (expressed as Fe2O3). The glass may be made using a batch redox of at least +7.5.
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The invention claimed is: 1. A method of making a glass comprising: Ingredient wt. % SiO2 67-75% Na2O 10-20% CaO 5-15% total iron (expressed as Fe2O3) 0.01 to 0.30% wherein the glass has visible transmission of at least 90%, a transmissive a* color value of-1
The invention claimed is: 1. A method of making a glass comprising: Ingredient wt. % SiO2 67-75% Na2O 10-20% CaO 5-15% total iron (expressed as Fe2O3) 0.01 to 0.30% wherein the glass has visible transmission of at least 90%, a transmissive a* color value of-1.5 to +1.0, and a transmissive b* color value of-1.0 to +1.5, wherein the method comprises: utilizing a batch redox of from +7.5 to +14 when making said glass. 2. The method of claim 1, wherein the glass comprises: total iron (expressed as Fe2O3) 0.02 to 0.20% erbium oxide 0.02 to 0.20%. 3. The method of claim 1, wherein the batch redox utilized in making the glass is from +8 to +12. 4. The method of claim 1, wherein the batch redox utilized in making the glass is from +8.5 to +11. 5. The method of claim 1, wherein the batch redox utilized in making the glass is from +9 to +11. 6. The method of claim 1, wherein the glass comprises: total iron (expressed as Fe2O3): 0.01-0.30% % FeO: 0.001-0.10% glass redox: <=0.25 erbium oxide: 0-0.30% cerium oxide: 0-0.30% cobalt oxide: 0-0.001%. 7. The method of claim 1, wherein the glass comprises: total iron (expressed as Fe2O3): 0.02-0.20% % FeO: 0.002-0.05% glass redox: <=0.20 erbium oxide: 0.02-0.20% cerium oxide: 0-0.18% cobalt oxide: 0-0.0005%. 8. The method of claim 1, wherein the glass comprises: total iron (expressed as Fe2O3): 0.03-0.08% % FeO: 0.004-0.015% glass redox: <=0.20 erbium oxide: 0.03-0.13%. 9. The method of claim 1, wherein the glass has a redox value (FeO/Fe2O3) no greater than 0.16. 10. The method of claim 1, wherein the glass further comprises from 0.001 to 0.10% FeO. 11. The method of claim 1, wherein the glass comprises from 0.002 to 0.05% FeO. 12. The method of claim 1, wherein the glass comprises from 0.004 to 0.015% FeO. 13. The method of claim 1, wherein the glass comprises less than or equal to 0.0002% cobalt oxide. 14. The method of claim 1, wherein the glass comprises less than or equal to 0.0001% cobalt oxide. 15. The method of claim 1, wherein the glass comprises less than or equal to 0.0002% cerium oxide. 16. The method of claim 1, wherein the glass comprises less than or equal to 0.0001% cerium oxide. 17. The method of claim 1, wherein the glass has a transmissive a* color value of-1.0 to +1.0. 18. The method of claim 1, wherein the glass has a transmissive a* color value of-0.8 to +0.5 and a transmissive b* color value of-0.7 to +1.0. 19. The method of claim 1, wherein the glass comprises from 0-5% MgO, from 0-5% K2O and from 0-5% Al2O3. 20. The method of claim 1, wherein the glass includes a colorant portion which consists essentially of: total iron (expressed as Fe2O3): 0.01-0.30% erbium oxide: 0-0.30% cerium oxide: 0-0.30% cobalt oxide: 0-0.0005%. 21. The method of claim 1, wherein the glass includes a colorant portion which consists essentially of total iron (expressed as Fe2O3) in an amount of from 0.01 to 0.30%. 22. A method of making soda-lime-silica based glass, the method comprising utilizing a batch redox of at least +7.5 when making the glass, wherein the glass has a visible transmission of at least 75%. 23. The method of claim 22, wherein the glass comprises: SiO2 67-75% Na2O 10-20% CaO 5-15% total iron (expressed as Fe2O3) 0.01 to 0.30% and wherein the glass has visible transmission of at least 80%, and a transmissive a* color value of-1.5 to +1.0. 24. The method of claim 23, wherein the glass has a visible transmission of at least 85%, and a transmissive a* value of-1.0 to +1.0. 25. The method of claim 22, wherein the glass has a glass redox value of no greater than 0.20. 26. The method of claim 22, wherein the batch redox utilized in making the glass is from +8 to +12.
Yukihito Nagashima JP; Akihiro Koyama JP; Isamu Kuroda JP; Masahiro Hirata JP; Masato Hyodo JP; Koichiro Nakamura JP, Light-colored glass of high transmittance and method for production thereof, glass plate with electrically conductive film and method for production thereof, and glass article.
Maugendre Stephane (Chantilly FRX) Dubois Bernard (Paris FRX), Process of production of a glass intended to be transformed into continuous or stable fibers.
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