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    • 6. 发明授权
    • Hydration of silicate glasses in alcohol-water solutions
    • 水溶液中的硅酸盐玻璃
    • US4133665A
    • 1979-01-09
    • US829731
    • 1977-09-01
    • Roger F. BartholomewWilliam L. HaynesLeon M. Sanford
    • Roger F. BartholomewWilliam L. HaynesLeon M. Sanford
    • C03C21/00C03C23/00C03C15/00C03B21/00
    • C03C21/002C03C23/00Y10T428/315
    • The present invention is concerned with the production of sodium and/or potassium hydrosilicate glass bodies. The basis of the invention resides in the hydration of anhydrous sodium and/or potassium silicate glass bodies in aqueous alcohol solutions to impart enhanced mechanical strength and thermoplastic properties thereto. The hydrating process, which permits close control to be maintained over the water content absorbed in the glass, can be carried out in liquid solutions of water and relatively short chain, i.e. up to about five carbon atoms, aliphatic alcohols or in gaseous atmospheres of such solutions. An ion exchange reaction of Li.sup.+ ions or protons with Na.sup.+ and/or K.sup.+ ions can be promoted at temperatures above the transformation range of the hydrated glass, and an exchange of K.sup.+ ions for Na.sup.+ and/or Li.sup.+ ions at temperatures below the transformation range. The invention also contemplates treating sodium and/or potassium hydrosilicate glass bodies, produced through the previous hydration of sodium and/or potassium silicate glass bodies, in a gaseous or liquid alcohol or water-alcohol mixture to impart increased strength and impact resistance thereto and alter the absorbed water content therein. The aforementioned ion exchange reactions are also applicable here.
    • 本发明涉及生产水合硅酸钠和/或钾的玻璃体。 本发明的基础是在醇水溶液中水合无水的钠和/或硅酸钾玻璃体以赋予其机械强度和热塑性能。 允许对玻璃中吸收的水分含量进行密切控制的水合方法可以在水和相对短链的溶液中进行,例如高达约5个碳原子,脂族醇或在气体气氛中 解决方案 Li +离子或质子与Na +和/或K +离子的离子交换反应可以在高于水合玻璃的转变范围的温度下被促进,并且在低于转变范围的温度下交换Na +和/或Li +离子的K +离子。 本发明还考虑处理通过先前水合钠和/或硅酸钾玻璃体而在气态或液态醇或水 - 醇混合物中产生的硅酸钠和/或钾硅酸盐玻璃,以赋予其增强的强度和抗冲击性,并改变 其中吸收的水分含量。 上述离子交换反应也适用于此。
    • 8. 发明授权
    • High refractive index hydrated glasses
    • 高折射率水合眼镜
    • US4099978A
    • 1978-07-11
    • US843798
    • 1977-10-20
    • Roger F. BartholomewChe-Kuang Wu
    • Roger F. BartholomewChe-Kuang Wu
    • C03C3/102C03C4/00C03C13/04C03C23/00C03C3/10C03C3/30
    • C03C3/102C03C23/00Y10S501/903
    • The present invention is directed to the preparation of hydrated glasses in the Na.sub.2 O-K.sub.2 O-PbO-SiO.sub.2 base composition system containing an amount of BaO and/or Y.sub.2 O.sub.3 and/or ZnO and/or ZrO.sub.2 effective to cause the hydrated glass to be essentially colorless. Such glasses are transparent, exhibit refractive indices higher than 1.60, and which demonstrate intrinsic thermoplastic properties thereby enabling such to be readily molded into optical quality components at relatively low temperatures. The operable glasses in the anhydrous state consist essentially, in mole percent on the oxide basis, of 8-18% Na.sub.2 O, 2-6% K.sub.2 O, 10-23% Na.sub.2 O + K.sub.2 O, >15 but
    • 本发明涉及在含有一定量的BaO和/或Y 2 O 3和/或ZnO和/或ZrO 2的Na 2 O-K 2 O-PbO-SiO 2基础组合物体系中制备水合玻璃,其有效地使水合玻璃基本上无色 。 这种玻璃是透明的,具有高于1.60的折射率,并且其表现出内在的热塑性质,因此能够在相对低的温度下容易地模制成光学质量的组分。 无水状态的可操作的玻璃基本上以氧化物的摩尔%计含有8-18%的Na2O,2-6%的K2O,10-23%的Na2O + K2O,> 15但是<21%的PbO,55-67 %SiO 2,PbO:SiO 2的摩尔比在0.225-0.3之间,有效量的BaO和/或Y 2 O 3和/或ZnO和/或ZrO 2直到5%BaO,5%Y 2 O 3,8%ZnO的指定最大值 ,5%ZrO 2,BaO + Y 2 O 3 + ZnO + ZrO 2不超过10%。