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    Gray glass composition
    2.
    发明授权
    Gray glass composition 失效

    公开(公告)号：US06274523B1

    公开(公告)日：2001-08-14

    申请号：US08529039

    申请日：1995-09-15

    申请人： John F. Krumwiede ,  Anthony V. Longobardo ,  Larry J. Shelestak ,  David R. Haskins

    发明人： John F. Krumwiede ,  Anthony V. Longobardo ,  Larry J. Shelestak ,  David R. Haskins

    IPC分类号： C03C3087

    CPC分类号： C03C3/087 ,  C03C4/02

    摘要： The present invention provides a glass composition having a neutral gray color and a luminous (visible) transmittance within a range that allows the glass to be used as privacy glazing in a vehicle. The glass of the present invention has a standard soda-lime-silica flat glass base composition and uses iron, cobalt and selenium, and optionally nickel, as the colorants. It has also been found that a nickel-free, neutral gray colored glass with a luminous transmittance (C.I.E. illuminant A) of up to 40% at a thickness of 3.9 millimeters may be attained by using as colorants: 0.59 to 0.99 wt. % of the total glass Fe2O3 (total iron), no greater than 0.30 wt. % FeO; 60 to 180 PPM CoO and 5 to 30 PPM Se. It has been found that a nickel-bearing, neutral gray colored glass with a luminous transmittance (C.I.E. illuminant A) of up to but less than 40% at a thickness of 3.9 millimeters may be attained by using as colorants: 0.35 to 1.1 wt. % of the total glass Fe2O3 (total iron), no greater than 0.30 wt. % FeO; 60 to 180 PPM CoO; 1 to 30 PPM Se; and 25 to 550 PPM NiO.

    Infrared and ultraviolet radiation absorbing blue glass composition
    3.
    发明授权
    Infrared and ultraviolet radiation absorbing blue glass composition 失效
    红外和紫外线吸收蓝色玻璃的组成

    公开(公告)号：US5688727A

    公开(公告)日：1997-11-18

    申请号：US664942

    申请日：1996-06-17

    申请人： Larry J. Shelestak ,  David R. Haskins

    发明人： Larry J. Shelestak ,  David R. Haskins

    IPC分类号： C03C3/078 ,  C03C3/087 ,  C03C3/095 ,  C03C4/02 ,  C03C4/08

    CPC分类号： C03C4/082 ,  C03C3/087 ,  C03C4/02 ,  C03C4/085

    摘要： The present invention provides a blue colored glass using a standard soda-lime-silica glass base composition and additionally iron and cobalt as solar radiation absorbing materials and colorants. In particular, the blue colored glass includes about 0.53 to 1.1 wt. % total iron, preferably about 0.6 to 0.85 wt. % and about 5 to 40 PPM CoO, preferably about 15 to 30 PPM and a luminous transmittance of at least 55%. If desired, the composition may include up to about 100 PPM Cr.sub.2 O.sub.3. The redox ratio for the glass of the present invention is maintained between about 0.25 to 0.35, preferably between about 0.28 to 0.33. The glass color is characterized by a dominant wavelength (DW) of about 485 to 491 nanometers and an excitation purity (Pe) of about 3 to 18 percent. In one particular embodiment of the invention, the color of the glass is characterized by a dominant wavelength in the range of about 487 to 489 nanometers and an excitation purity of about 3 to 8 percent at a thickness of about 0.084 to 0.126 inches, an excitation purity of about 5 to 12 percent at a thickness of about 0.126 to 0.189 inches, and an excitation purity of about 10 to 18 percent at a thickness of about 0.189 to 0.315 inches.

    摘要翻译： 本发明提供了使用标准钠钙石英玻璃基础组合物和另外的铁和钴作为太阳辐射吸收材料和着色剂的蓝色玻璃。 特别地，蓝色玻璃包括约0.53至1.1wt。 总铁含量，优选约0.6至0.85wt。 ％和约5至40PPM CoO，优选约15至30PPM，透光率至少为55％。 如果需要，组合物可以包括高达约100PPM的Cr 2 O 3。 本发明的玻璃的氧化还原比保持在约0.25至0.35之间，优选在约0.28至0.33之间。 玻璃颜色的特征在于主要波长（DW）为约485至491纳米，激发纯度（Pe）为约3至18％。 在本发明的一个具体实施方案中，玻璃的颜色的特征在于主要波长在约487至489纳米范围内，激发纯度约为3-8％，厚度为约0.084至0.126英寸，激发 厚度为约0.126至0.189英寸的约5至12％的纯度，约0.18至0.315英寸厚度的约10至18％的激发纯度。