公开(公告)号：US4314031A

公开(公告)日：1982-02-02

申请号：US160387

申请日：1980-06-17

申请人： Leon M. Sanford ,  Paul A. Tick

发明人： Leon M. Sanford ,  Paul A. Tick

IPC分类号： C03C3/062 ,  C03C3/23 ,  C03C3/247 ,  C03C4/00 ,  C03C4/02 ,  C03C3/04 ,  C03C3/00 ,  C03C3/10 ,  C03C3/12

CPC分类号： C03C3/247 ,  Y10S501/901 ,  Y10S501/903

摘要： Glass compositions in the tin-phosphorus-oxyfluoride composition system exhibiting very low glass transition temperatures and capable of being modified by the addition of selected constituents to exhibit excellent stability in a humid environment, are described.

摘要翻译： 描述了显示非常低的玻璃化转变温度并且能够通过添加选择的组分进行改性以在潮湿环境中表现出优异稳定性的锡 - 磷 - 氟氧化物组合物体系中的玻璃组合物。

公开(公告)号：US4285730A

公开(公告)日：1981-08-25

申请号：US198437

申请日：1980-10-20

申请人： Leon M. Sanford ,  Paul A. Tick

发明人： Leon M. Sanford ,  Paul A. Tick

IPC分类号： C03C3/247 ,  C03C3/16

CPC分类号： C03C3/247 ,  Y10S501/903

摘要： The instant invention is concerned with the production of glasses which are capable of being molded or otherwise shaped under pressure at temperatures not exceeding about 450.degree. C. Such glasses consist essentially, in mole percent as analyzed on the oxide basis, of at least 20% but less than 50% P.sub.2 O.sub.5, 15-45% R.sub.2 O, wherein R.sub.2 O consists of 0-45% Li.sub.2 O, 0-20% Na.sub.2 O, and 0-10% K.sub.2 O, and 0-20% RO, wherein RO consists of 0-10% MgO, 0-15% CaO, 0-20% SrO, and 0-20% BaO, with about 0.3-3% by weight F as analyzed in the final glass. Useful additions to the base compositions include PbO, La.sub.2 O.sub.3, ZnO, and B.sub.2 O.sub.3.

摘要翻译： 本发明涉及能够在不超过约450℃的温度下在压力下成型或以其它方式成形的玻璃的生产。这种玻璃基本上以氧化物为基准按摩尔％计为至少20％ 但少于50％的P2O5，15-45％的R2O，其中R2O由0-45％Li2O，0-20％Na2O和0-10％K2O组成，0-20％RO，其中RO由0-10 ％MgO，0-15％CaO，0-20％SrO和0-20％BaO，以及在最终玻璃中分析的约0.3-3重量％的F。 对基础组合物的有用添加物包括PbO，La 2 O 3，ZnO和B 2 O 3。

公开(公告)号：US4093469A

公开(公告)日：1978-06-06

申请号：US789105

申请日：1977-04-20

申请人： Leon M. Sanford ,  Che-Kuang Wu

发明人： Leon M. Sanford ,  Che-Kuang Wu

IPC分类号： C03C3/076 ,  C03C3/078 ,  C03C3/102 ,  C03C3/105 ,  C03C3/108 ,  C03C23/00 ,  C03C3/10 ,  C03C3/04 ,  C03C3/30

CPC分类号： C03C3/105 ,  C03C23/00 ,  C03C3/078 ,  C03C3/102 ,  C03C3/108 ,  Y10S501/90

摘要： An optical glass article having a desired surface figure and demonstrating maximum theoretical light transmission can be prepared by forming a base anhydrous glass of defined compositional ranges, hydrating the glass, partially dehydrating the glass at a temperature above the softening point and, using an inert gas, at a pressure above the vapor pressure of water contained therein, and then molding a preformed blank of the glass against a die having a desired optical quality surface figure, the molding being under conditions sufficient to transfer the surface figure of the die to the glass. The base glass comprises, in mole percent, about 70 to 82% SiO.sub.2, 10 to 17% Na.sub.2 O and/or K.sub.2 O, and 5 to 15% of an oxide or oxides selected from ZnO and PbO. The water content of the partially dehydrated glass ranges from about 3 to 8 wt. percent and the molded glass has a substantially uniform refractive index throughout its bulk. Homogeneous distribution of the water throughout the glass bulk appears to be assured by limiting the total water content to a range at which the diffusion coefficient of the water species (H.sub.2 O, H.sup.+, and OH.sup.-) exhibits the greatest dependence on the total water concentration (i.e. the range at which the coefficient is a quasi-step function).

公开(公告)号：US4133665A

公开(公告)日：1979-01-09

申请号：US829731

申请日：1977-09-01

申请人： Roger F. Bartholomew ,  William L. Haynes ,  Leon M. Sanford

发明人： Roger F. Bartholomew ,  William L. Haynes ,  Leon M. Sanford

IPC分类号： C03C21/00 ,  C03C23/00 ,  C03C15/00 ,  C03B21/00

CPC分类号： C03C21/002 ,  C03C23/00 ,  Y10T428/315

摘要： 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.

摘要翻译： 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。

公开(公告)号：US4046545A

公开(公告)日：1977-09-06

申请号：US689791

申请日：1976-05-25

申请人： Leon M. Sanford ,  Che-Kuang Wu

发明人： Leon M. Sanford ,  Che-Kuang Wu

IPC分类号： C03C3/076 ,  C03C3/078 ,  C03C3/102 ,  C03C3/105 ,  C03C3/108 ,  C03C23/00 ,  C03B23/00 ,  C03C3/04

CPC分类号： C03C3/105 ,  C03C23/00 ,  C03C3/078 ,  C03C3/102 ,  C03C3/108 ,  Y10S501/90

摘要： An optical glass article having a desired surface figure and demonstrating maximum theoretical light transmission can be prepared by forming a base anhydrous glass of defined compositional ranges, hydrating the glass, partially dehydrating the glass at a temperature above the softening point and, using an inert gas, at a pressure above the vapor pressure of water contained therein, and then molding a preformed blank of the glass against a die having a desired optical quality surface figure, the molding being under conditions sufficient to transfer the surface figure of the die to the glass. The base glass comprises, in mole percent, about 70 to 82% SiO.sub.2, 10 to 17% Na.sub.2 O and/or K.sub.2 O, and 5 to 15% of an oxide or oxides selected from ZnO and PbO. The water content of the partially dehydrated glass ranges from about 3 to 8 wt. percent and the molded glass has a substantially uniform refractive index throughout its bulk. Homogeneous distribution of the water throughout the glass bulk appears to be assured by limiting the total water content to a range at which the diffusion coefficient of the water species (H.sub.2 O, H.sup.+, and OH.sup.-) exhibits the greatest dependence on the total water concentration (i.e. the range at which the coefficient is a quasi-step function).

摘要翻译： 具有期望的表面图形并且显示最大理论透光率的光学玻璃制品可以通过形成具有确定的组成范围的基础无水玻璃来制备，水合玻璃，在高于软化点的温度下部分地使玻璃脱水，并使用惰性气体 在高于其中所含的水蒸汽压力的压力下，然后将玻璃的预成型坯件模制成具有所需光学质量表面图形的模具，模制件处于足以将模具的表面图形转移到玻璃板的条件下 。 基础玻璃的摩尔百分比含有约70-82％的SiO 2，10-17％的Na 2 O和/或K 2 O，以及5-15％的选自ZnO和PbO的氧化物或氧化物。 部分脱水玻璃的含水量为约3-8wt。 并且模制玻璃在其整体上具有基本上均匀的折射率。 通过将水分含量限制在水分（H 2 O，H +和OH-）的扩散系数对总水分浓度的最大依赖性的范围内，整个玻璃体积中的水的均匀分布似乎是确定的（ 即系数为准阶跃函数的范围）。