LOW IRON, HIGH REDOX RATIO, AND HIGH IRON, HIGH REDOX RATIO, SODA-LIME SILICA GLASS AND METHOD OF MAKING SAME

• Main Authors: MARK O NAYLOR, LAWRENCE E JANSEN, SHELESTAK LARRY J
• Format: Patent
• Language: English; Japanese
• Published: 28.09.2017
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

PROBLEM TO BE SOLVED: To provide low iron, high redox ratio, and high iron, high redox ratio soda lime silica glasses and methods of making same.SOLUTION: There is provided a soda lime-silica glass having a basic soda-lime-silica glass portion, and a colorant portion including: total iron as FeOselected from the group of total iron as FeOin the range of greater than zero to 0.02 weight percent; total iron as FeOin the range of greater than 0.02 weight percent to less than 0.10 weight percent and total iron as FeOin the range of 0.10 to 2.00 weight percent; redox ratio in the range of 0.2 to 0.6; and tin and/or tin compounds ( e.g. SnOgreater than 0.000 to 5.0 weight percent). In one embodiment of the invention, the glass has a tin side and an opposite air side, wherein the tin side of the glass is supported on a molten tin bath during forming of the glass. The tin concentration at the tin side of the glass is greater than, less than, or equal to the tin concentration in [body portion] of the glass.SELECTED DRAWING: None 【課題】低鉄、高レドックス比、及び高鉄、高レドックス比、ソーダ石灰シリカガラス、並びにその製造方法【解決手段】基礎ソーダ石灰シリカガラス部と着色部とを有し、着色部が、０重量％より大きく０．０２重量％までの範囲のＦｅ２Ｏ３としての全鉄、０．０２重量％より大きく０．１０重量％未満の範囲のＦｅ２Ｏ３としての全鉄、及び０．１０重量％から２．００重量％までの範囲のＦｅ２Ｏ３としての全鉄、の群から選択されるＦｅ２Ｏ３としての全鉄と、０．２から０．６の範囲のレドックス比と、スズ及び／又はスズ含有化合物（例えば、０．０００より大きく５．０重量％までのＳｎＯ２）とを含むソーダ灰シリカガラス。ガラスは、スズ側と反対の空気側とを有し、ガラスのスズ側は、ガラスの形成中に溶融スズ浴上に支持されており、ガラスのスズ側のスズ濃度が、ガラスの「本体部」のスズ濃度より大きい、より小さい、又は等しい、ガラスの製造方法。【選択図】なし