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    • 1. 发明授权
    • Green privacy glass
    • 绿色隐私玻璃
    • US06413893B1
    • 2002-07-02
    • US09389840
    • 1999-09-03
    • Larry J. ShelestakRobert B. HeithoffAndrew CalabreseJohn F. KrumwiedeAnthony V. Longobardo
    • Larry J. ShelestakRobert B. HeithoffAndrew CalabreseJohn F. KrumwiedeAnthony V. Longobardo
    • C03C3087
    • C03C3/087C03C4/02C03C4/082C03C4/085Y10S501/904Y10S501/905
    • The present invention provides a green colored, infrared and ultraviolet absorbing glass article having a luminous transmittance of up to 60 percent. The composition of the glass article uses a standard soda-lime-silica glass base composition and additionally iron, cobalt, selenium, and chromium, and titanium, as infrared and ultraviolet radiation absorbing materials and colorants. The glasses of the present invention have a color characterized by a dominant wavelength in the range of about 480 to 565 nanometers, preferably about 495 to 560 nanometers, with an excitation purity of no higher than about 20 percent, preferably no higher than about 10 percent, and more preferably no higher than about 7 percent. The glass compositions may be provided with different levels of spectral performance depending on the particular application and desired luminous transmittance. In one embodiment of the invention, the green colored glass composition in addition to the soda-lime-silica glass base composition has the solar radiation absorbing and colorant portion of about 0.60 to 4 percent by weight total iron, about 0.13 to 0.9 percent by weight FeO, about 40 to 500 PPM CoO, about 5 to 70 PPM Se, about 15 to 800 PPM Cr2O3, and about 0.02 to 1 percent by weight TiO2. In another embodiment of the invention, the glass composition of the article includes a solar radiation absorbing and colorant portion of 1 to less than 1.4 percent by weight total iron, about 0.2 to 0.6 percent by weight FeO, greater than 200 to about 500 PPM CoO, about 5 to 70 PPM Se, greater than 200 to about 800 PPM Cr2O3, and 0 to about 1 percent by weight TiO2.
    • 本发明提供了具有高达60%的透光率的绿色,红外和紫外线吸收玻璃制品。 玻璃制品的组成使用标准的钠钙石英玻璃基础组合物,另外还有铁,钴,硒和铬以及钛作为红外和紫外线辐射吸收材料和着色剂。 本发明的玻璃具有主要波长在约480至565纳米,优选约495至560纳米范围内的颜色,其激发纯度不高于约20%,优选不高于约10% ,更优选不高于约7%。 玻璃组合物可以根据具体应用和期望的透光度而具有不同水平的光谱性能。 在本发明的一个实施方案中,除了钠钙石英玻璃基础组合物之外的绿色玻璃组合物具有约0.60至4重量%的总铁,约0.13至0.9重量%的太阳辐射吸收和着色剂部分 约40至500PPM CoO,约5至70PPM Se,约15至800PPM Cr 2 O 3和约0.02至1重量%的TiO 2。 在本发明的另一个实施方案中,制品的玻璃组合物包括太阳辐射吸收和着色剂部分,其总量为1至小于1.4重量%,约0.2至0.6重量%的FeO,大于200至约500PPM的CoO 约5至70PPM Se,大于200至约800PPM Cr 2 O 3和0至约1重量%的TiO 2。
    • 2. 发明授权
    • Gray glass composition
    • 灰色玻璃组成
    • US6114264A
    • 2000-09-05
    • US414165
    • 1995-03-31
    • John F. KrumwiedeAnthony V. LongobardoLarry J. Shelestak
    • John F. KrumwiedeAnthony V. LongobardoLarry J. Shelestak
    • C03C3/076C03C3/087C03C4/02C03C4/08C03C3/095
    • C03C3/087C03C4/02Y10S501/905
    • 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 in the forward vision areas of a vehicle. The base glass is a soda-lime-silica composition and iron, cobalt, selenium and/or nickel are added as colorants. In one particular embodiment of the invention which is essentially nickel-free, a neutral gray colored glass with a luminous transmittance (C.I.E. illuminant A) of 60% and higher at a thickness of 3.9 millimeters may be attained by using as colorants: 0.30 to 0.70 wt. % Fe.sub.2 O.sub.3, no greater than 0.21 wt. % FeO, 3-50 PPM CoO and 1-15 PPM Se, and preferably 0.32 to 0.65 wt. % Fe.sub.2 O.sub.3, 0.065 to 0.20 wt. % FeO, 5 to 40 PPM CoO and 1 to 9 PPM Se. In an alternate embodiment of the invention which includes nickel oxide as a colorant, a neutral gray colored glass with a luminous transmittance of 60% and higher at a thickness of 3.9 millimeters may be attained by using 0.15 to 0.65 wt. % Fe.sub.2 O.sub.3, no greater than 0.18 wt. % FeO, 15-55 PPM CoO, 0-5 PPM Se and 25-350 PPM NiO as colorants, and preferably 0.17 to 0.60 wt. % Fe.sub.2 O.sub.3, 0.04 to 0.16 wt. % FeO, 20 to 52 PPM CoO, 0 to 3 PPM Se and at least 50 PPM NiO.
    • 本发明提供一种玻璃组合物,其在允许玻璃用于车辆前视区域的范围内具有中性灰色和发光(可见)透射率。 基础玻璃是钠钙二氧化硅组合物,并且加入铁,钴,硒和/或镍作为着色剂。 在基本上不含镍的本发明的一个具体实施方案中,通过使用0.30至0.70的着色剂,可以获得厚度为3.9毫米的具有60%或更高透光率(CIE发光体A)的中性灰色玻璃,其厚度为3.9毫米 重量 %Fe 2 O 3,不大于0.21wt。 %FeO,3-50PPM CoO和1-15PPM Se,优选为0.32〜0.65wt。 %Fe 2 O 3,0.065〜0.20重量% %FeO,5〜40PPM CoO和1〜9PPM Se。 在包括氧化镍作为着色剂的本发明的替代实施方案中,通过使用0.15-0.65wt。%的透明度可以获得厚度为3.9mm的透光率为60%以上的中性灰色玻璃。 %Fe 2 O 3,不大于0.18wt。 %FeO,15-55PPM CoO,0-5PPM Se和25-350PPM NiO作为着色剂,优选为0.17〜0.60wt。 %Fe 2 O 3,0.04〜0.16重量% %FeO,20〜52PPM CoO,0〜3PPM Se和至少50PPM NiO。