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1.发明授权Method for converting cyclic polycarbonate oligomer mixtures to linear polycarbonate, and composition resulting therefrom 失效将环状聚碳酸酯低聚物混合物转化为线性聚碳酸酯的方法，以及由其制得的组合物
公开(公告)号：US4740583A
公开(公告)日：1988-04-26
申请号：US888673
申请日：1986-07-24
申请人： Daniel J. Brunelle , Thomas L. Evans , Michael A. Vallance , Kevin R. Stewart , Thomas G. Shannon , David A. Williams , Dwight J. Patterson , Niles R. Rosenquist , William Hilakos
发明人： Daniel J. Brunelle , Thomas L. Evans , Michael A. Vallance , Kevin R. Stewart , Thomas G. Shannon , David A. Williams , Dwight J. Patterson , Niles R. Rosenquist , William Hilakos
摘要： Cyclic polycarbonate (or thiol analog) oligomer mixtures are prepared by the reaction of bishaloformates or their thio analogs, or mixtures thereof with dihydroxy or dimercapto compounds, with alkali metal hydroxides and various amines. The oligomer mixtures may be converted to polycarbonates or their thiol analogs by a method which is particularly adaptable to integration with polycarbonate processing operations. Polymerization may be conducted simultaneously with molding, extrusion and the like. The oligomer mixtures are adaptable to the preparation of filled prepregs.
摘要翻译： 通过双卤代甲酸酯或其硫代类似物或其与二羟基或二巯基化合物的混合物与碱金属氢氧化物和各种胺的反应制备环状聚碳酸酯（或硫醇类似物）低聚物混合物。 低聚物混合物可以通过特别适用于与聚碳酸酯加工操作整合的方法转化为聚碳酸酯或其硫醇类似物。 聚合可以与成型，挤出等同时进行。 低聚物混合物适用于填充的预浸料的制备。
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公开(公告)号：US06288206B1
公开(公告)日：2001-09-11
申请号：US09432312
申请日：1999-11-02
IPC分类号： C08G6400
CPC分类号： G02F1/3615 , C08G63/68 , C08G64/08 , C08G65/4006 , C08G65/4031 , C08G65/4068 , C08G65/48 , C08G75/23 , C08G2650/64 , G02F1/3617
摘要： Chiral organic polymers doped with or appended by nonlinear optical dyes are disclosed. The use of chiral polymers produces a more stable noncentrosymmetric environment for the dye molecules resulting in unexpectedly long relaxation times as compared with previously used organic polymers. In addition, the NLO/chiral polymer materials exhibit high electro-optical coefficients (r33), high nonlinear optical coefficients (d33), improved long-term thermal stability, and at the same time retain the processing advantages associated with organic polymers. Thus, the present NLO/chiral polymer materials are extremely well-suited for use in second-order nonlinear optical and optoelectronics devices.
摘要翻译： 公开了由非线性光学染料掺杂或附加的手性有机聚合物。 与以前使用的有机聚合物相比，手性聚合物的使用为染料分子产生更稳定的非中心对称环境，导致意想不到的长的松弛时间。 此外，NLO /手性聚合物材料具有高的电光系数（r33），高非线性光学系数（d33），改善的长期热稳定性，同时保持与有机聚合物相关的加工优点。 因此，本发明的NLO /手性聚合物材料非常适用于二阶非线性光学和光电子器件。
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3.发明授权Preparation of linear polycarbonates from cyclic oligomer compositions using zwitterionic catalyst 失效使用两性离子催化剂从环状低聚物组合物制备线性聚碳酸酯
公开(公告)号：US4927911A
公开(公告)日：1990-05-22
申请号：US313563
申请日：1989-02-22
申请人： Kevin R. Stewart
发明人： Kevin R. Stewart
CPC分类号： C08G64/30
摘要： Cyclic polycarbonate oligomers are converted to linear polycarbonates by the catalytic action of a zwitterionic compound containing positively charged nitrogen and negatively charged oxygen. The polymerization reaction is slow, and therefore particularly useful in such operations as resin transfer molding.
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4.发明授权Preparation of linear polycarbonates from cyclic oligomer compositions using aryl tetrahydropyranyl ether catalyst 失效使用芳基四氢吡喃醚催化剂从环状低聚物组合物制备线性聚碳酸酯
公开(公告)号：US4927910A
公开(公告)日：1990-05-22
申请号：US313564
申请日：1989-02-22
申请人： Kevin R. Stewart
发明人： Kevin R. Stewart
CPC分类号： C08G64/30
摘要： Cyclic polycarbonate oligomers are converted to linear polycarbonates by the catalytic action of an aryl tetrahydropyranyl ether. The polymerization reaction is slow, and therefore particularly useful in such operations as resin transfer molding.
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5.发明授权Apparatus and method for sharing a cached security profile in a database environment 失效用于在数据库环境中共享缓存安全性配置文件的装置和方法公开(公告)号：US07818566B2
公开(公告)日：2010-10-19
申请号：US11843800
申请日：2007-08-23
IPC分类号： G06F21/00
CPC分类号： G06F21/6218 , G06F21/604 , G06F2221/2151
摘要： An apparatus, system, and method are provided for sharing a cached security profile in a database environment. The apparatus, system, and method include a cache module for caching a security profile accessible to primary tasks and secondary tasks. An identification module is provided that distinguishes between primary tasks authorized to refresh the security profile and secondary tasks. A refresh module cooperates with the cache module and identification module to selectively refresh the security profile in response to a refresh request and expiration of the security profile such that an old version of the security profile is retained for use by secondary tasks until an execution window closes.
摘要翻译： 提供了一种用于在数据库环境中共享缓存的安全配置文件的装置，系统和方法。 装置，系统和方法包括用于缓存主要任务和次要任务可访问的安全简档的高速缓存模块。 提供了识别模块，其区分被授权刷新安全配置文件和辅助任务的主要任务。 刷新模块与高速缓存模块和识别模块协作以响应于刷新请求和安全性配置文件的到期来选择性地刷新安全性配置文件，使得旧版本的安全配置文件被保留以供辅助任务使用，直到执行窗口关闭 。
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6.发明授权Polycarbonates derived from spirobiindanols and dihydroxyaromatic compounds 失效衍生自螺二茚醇和二羟基芳族化合物的聚碳酸酯公开(公告)号：US06174987B1
公开(公告)日：2001-01-16
申请号：US08920931
申请日：1997-08-29
申请人： Janet L. Gordon , Kevin R. Stewart
发明人： Janet L. Gordon , Kevin R. Stewart
IPC分类号： C08G6400
CPC分类号： C08G64/06
摘要： Linear polycarbonate polymers are disclosed which contain spirobiindanol derivatives regularly alternating in the polymeric chain with derivatives of dihydroxyaromatic compounds, such as biphenols and bisphenols. These clear spirobiindane-dihydroxyaromatic polycarbonates exhibit high glass transition temperatures and exhibit good mechanical and optical properties. In addition, the alternating polycarbonates are thermally stable and remain ductile even at temperatures greater than 150° C. The polycarbonates are therefore useful in high temperature processing and optical applications. The disclosed polycarbonates exhibit indices of refraction that differ sufficiently from those of randomly distributed SBI/BPA polycarbonates to make them useful in the manufacture of optical waveguides.
摘要翻译： 公开了线性聚碳酸酯聚合物，其包含在聚合物链中规则交替的螺二茚醇衍生物与二羟基芳族化合物如联苯酚和双酚的衍生物。 这些透明的螺二茚二酮 - 二羟基芳族聚碳酸酯表现出高的玻璃化转变温度并表现出良好的机械和光学性能。 此外，交替的聚碳酸酯是热稳定的，并且即使在大于150℃的温度下也保持延展性。因此，聚碳酸酯可用于高温加工和光学应用。 所公开的聚碳酸酯表现出与随机分布的SBI / BPA聚碳酸酯充分不同的折射指数，使其可用于制造光波导。
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7.发明授权Optically active poly(aryl)ethers containing optically pure spirobindane and indane moieties 失效光学活性的聚（芳基）醚，含有光学纯的螺二茚满和二氢化茚部分
公开(公告)号：US5856422A
公开(公告)日：1999-01-05
申请号：US957549
申请日：1997-10-24
CPC分类号： C08G75/23 , C08G65/4012 , C08G73/10
摘要： Optically active poly(aryl)ether polymers prepared from monomers containing optically pure spirobiindane and/or indane moieties are disclosed. The chiral poly(aryl)ether polymers are of high molecular weight and exhibit high optical rotations. In addition, the polyethers are thermally stable at high temperatures and exhibit excellent hydrolytic resistance making them useful in high temperature processing applications, in the fabrication of optoelectronics devices, and as polarizing coatings and filters.
摘要翻译： 公开了由含有光学纯的螺二茚和/或茚满部分的单体制备的光学活性聚（芳基）醚聚合物。 手性聚（芳基）醚聚合物具有高分子量并表现出高旋光度。 此外，聚醚在高温下是热稳定的并且表现出优异的耐水解性，使得它们可用于高温加工应用，光电子器件的制造以及偏光涂层和过滤器。
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8.发明授权
公开(公告)号：US5543960A
公开(公告)日：1996-08-06
申请号：US439393
申请日：1995-05-11
CPC分类号： G02F1/3534 , G02F1/3551
摘要： Apparatus for the generation of high energy terahertz radiation is presented and comprises laser means effective to produce subpicosecond optical pulses and a mosaic comprising a plurality of planar electro-optic crystals fastened together edge to edge in the form of a grid. The electro-optic crystals are in optical communication with the subpicosecond optical pulses, and behave as a single large electro-optic crystal, producing high energy terahertz radiation by way of optical rectification.
摘要翻译： 提出了用于产生高能量太赫兹辐射的装置，其包括有效产生亚秒级脉冲的激光装置和包含多个平面电光晶体的马赛克，所述平面电光晶体以网格的形式固定在一起的边缘到边缘。 电光晶体与亚秒级光脉冲光通信，并且表现为单个大电光晶体，通过光学校正产生高能量太赫兹辐射。
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9.发明授权Preparation of linear polycarbonates from cyclic oligomer compositions using metal chelate catalyst 失效使用金属螯合催化剂从环状低聚物组合物制备线性聚碳酸酯
公开(公告)号：US4853459A
公开(公告)日：1989-08-01
申请号：US185596
申请日：1988-04-25
申请人： Kevin R. Stewart
发明人： Kevin R. Stewart
CPC分类号： C08G64/30
摘要： Cyclic polycarbonate oligomers are converted to linear polycarbonates by the catalytic action of a chelate of a transition metal with a ketone, diester or keto ester such as acetylacetone. The metal chelates vary in catalytic action with the position of the metal in the Periodic Table.
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公开(公告)号：US20080266087A1
公开(公告)日：2008-10-30
申请号：US11815833
申请日：2006-02-08
申请人： Robert C. Tatar , Kevin R. Stewart
发明人： Robert C. Tatar , Kevin R. Stewart
IPC分类号： G08B13/18
CPC分类号： G08B13/124 , G08B13/186
摘要： A security system includes an optical fiber, a plurality of sensors, and a light source, detector, and a controller. The optical fiber and sensors are attached and positioned along a fence. The optical fiber passes through the sensors. The sensors include a hinged striker having a weight that swings under the influence of gravity and is movable in response to vibration of the fence to compress and bend the optical fiber and attenuate transmission of an optical signal through the optical fiber. In another embodiment, an optical fiber cable having a plurality of optical fibers may be employed to define zones and allow determination of intrusion of a particular portion of the fence. In a further embodiment, a ground sensor is disclosed.
摘要翻译： 安全系统包括光纤，多个传感器，以及光源，检测器和控制器。 光纤和传感器沿着围栏安装和定位。 光纤通过传感器。 传感器包括具有在重力作用下摆动的重量的铰链撞针，并且能够响应于围栏的振动而移动，以压缩和弯曲光纤并衰减通过光纤的光信号的传输。 在另一个实施例中，可以采用具有多个光纤的光纤缆线来限定区域并且允许确定围栏的特定部分的入侵。 在另一实施例中，公开了一种接地传感器。
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