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1.发明授权Article for use in optical application formed from linear polycarbonate resins 失效用于由线性聚碳酸酯树脂形成的光学应用的产品
公开(公告)号：US5464930A
公开(公告)日：1995-11-07
申请号：US504816
申请日：1990-04-05
申请人： James M. Silva , Robert A. Pyles
发明人： James M. Silva , Robert A. Pyles
CPC分类号： G11B7/253 , C07C68/02 , C08G64/24 , C08G64/28 , C08G64/406 , G11B7/2534
摘要： Bischloroformate oligomer compositions are prepared by passing phosgene into a heterogeneous aqueous-organic mixture containing at least one dihydroxyaromatic compound, with simultaneous introduction of a base at a rate to maintain a specific pH range and to produce a specific volume ratio of aqueous to organic phase. By this method, it is possible to employ a minimum amount of phosgene. The reaction may be conducted batchwise or continuously. The bischloroformate composition may be employed for the preparation of cyclic polycarbonate oligomers or linear polycarbonate, and linear polycarbonate formation may be integrated with bischloroformate composition formation in a batch or continuous process.
摘要翻译： 通过将光气通入含有至少一种二羟基芳族化合物的非均相含水 - 有机混合物中，同时引入碱以保持特定pH范围并产生水相与有机相的比体积比来制备双氯甲酸酯低聚物组合物。 通过该方法，可以使用最少量的光气。 反应可以间歇或连续进行。 双氯甲酸酯组合物可用于制备环状聚碳酸酯低聚物或直链聚碳酸酯，并且线性聚碳酸酯形成可以以分批或连续方法形成二氯甲酸酯组合物。
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公开(公告)号：US5011967A
公开(公告)日：1991-04-30
申请号：US128848
申请日：1987-12-04
申请人： James M. Silva , Robert A. Pyles
发明人： James M. Silva , Robert A. Pyles
CPC分类号： G11B7/253 , C07C68/02 , C08G64/24 , C08G64/28 , C08G64/406 , G11B7/2534
摘要： Bischloroformate oligomer compositions are prepared by passing phosgene into a heterogeneous aqueous-organic mixture containing at least one dihydroxyaromatic compound, with simultaneous introduction of a base at a rate to maintain a specific pH range and to produce a specific volume ratio of aqueous to organic phase. By this method, it is possible to employ a minimum amount of phosgene. The reaction may be conducted batchwise or continuously. The bischloroformate composition may be employed for the preparation of cyclic polycarbonate oligomers or linear polycarbonate, and linear polycarbonate formation may be integrated with bischloroformate composition formation in a batch or continuous process.
摘要翻译： 通过将光气通入含有至少一种二羟基芳族化合物的非均相含水 - 有机混合物中，同时引入碱以保持特定pH范围并产生水相与有机相的比体积比来制备双氯甲酸酯低聚物组合物。 通过该方法，可以使用最少量的光气。 反应可以间歇或连续进行。 双氯甲酸酯组合物可用于制备环状聚碳酸酯低聚物或直链聚碳酸酯，并且线性聚碳酸酯形成可以以分批或连续方法形成二氯甲酸酯组合物。
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3.发明授权Method for preparing polycarbonate of controlled molecular weight from aromatic bischloroformate 失效从芳香双氯甲酸酯制备受控分子量的聚碳酸酯的方法
公开(公告)号：US4743676A
公开(公告)日：1988-05-10
申请号：US46768
申请日：1987-05-07
申请人： James M. Silva , Robert A. Pyles
发明人： James M. Silva , Robert A. Pyles
摘要： Linear polycarbonates of controlled molecular weight are prepared by first reacting a bischloroformate composition with a monohydroxyaromatic compound in a system comprising water, a base and a suitable organic liquid, and then converting the resulting partially capped bischloroformate composition to linear polycarbonate by contact with an interfacial polycarbonate formation catalyst in an alkaline medium. By this method, the efficiency of the capping agent is improved.
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4.发明授权Method for preparing aromatic bischloroformate compositions and polycarbonates 失效芳烃双氯甲酸酯组合物和聚碳酸酯的制备方法
公开(公告)号：US5580951A
公开(公告)日：1996-12-03
申请号：US295480
申请日：1994-08-25
申请人： James M. Silva , Robert A. Pyles
发明人： James M. Silva , Robert A. Pyles
CPC分类号： G11B7/253 , C07C68/02 , C08G64/24 , C08G64/28 , C08G64/406 , G11B7/2534
摘要： Bischloroformate oligomer compositions are prepared by passing phosgene into a heterogeneous aqueous-organic mixture containing at least one dihydroxyaromatic compound, with simultaneous introduction of a base at a rate to maintain a specific pH range and to produce a specific volume ratio of aqueous to organic phase. By this method, it is possible to employ a minimum amount of phosgene. The reaction may be conducted batchwise or continuously. The bischloroformate composition may be employed for the preparation of cyclic polycarbonate oligomers or linear polycarbonate, and linear polycarbonate formation may be integrated with bischloroformate composition formation in a batch or continuous process.
摘要翻译： 通过将光气通入含有至少一种二羟基芳族化合物的非均相含水 - 有机混合物中，同时引入碱以保持特定pH范围并产生水相与有机相的比体积比来制备双氯甲酸酯低聚物组合物。 通过该方法，可以使用最少量的光气。 反应可以间歇或连续进行。 双氯甲酸酯组合物可用于制备环状聚碳酸酯低聚物或直链聚碳酸酯，并且线性聚碳酸酯形成可以以分批或连续方法形成二氯甲酸酯组合物。
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公开(公告)号：US4994594A
公开(公告)日：1991-02-19
申请号：US161689
申请日：1988-02-29
申请人： James M. Silva , Robert A. Pyles
发明人： James M. Silva , Robert A. Pyles
摘要： Oligomeric carbonate dihydroxyaromatic-based chainstoppers are disclosed. One example of this type of chainstopper is a bisphenol A bischloroformate oligomer monocapped with phenol. These chainstoppers may be prepared by phosgenating a dihydroxyaromatic compound to terminate one or both of the terminal oxygen atoms with chlorocarbonyl groups, followed by reaction of the chlorocarbonyl-terminated material with a phenolic-type compound in the presence of an amine catalyst. The chainstoppers of the present invention are very useful in accurately controlling the molecular weight of polycarbonates formed by various processes, while also preventing the formation of undesirable by-products, such as diarylcarbonates.
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6.发明授权Method for polymerizing aromatic bischloroformate composition to polycarbonate 失效芳族双氯甲酸酯组合物聚合成聚碳酸酯的方法
公开(公告)号：US4737573A
公开(公告)日：1988-04-12
申请号：US917751
申请日：1986-10-10
申请人： James M. Silva , Robert A. Pyles
发明人： James M. Silva , Robert A. Pyles
IPC分类号： B01J23/04 , B01J31/02 , C07B61/00 , C07C68/02 , C07C68/08 , C07C69/96 , C08G64/22 , C08G64/28 , C08G64/40 , G11B7/253 , C08G63/62
CPC分类号： G11B7/253 , C07C68/02 , C08G64/28 , C08G64/406
摘要： Bischloroformate oligomer compositions are prepared by passing phosgene into a heterogeneous aqueous-organic mixture containing at least one dihydroxyaromatic compound, with simultaneous introduction of a base at a rate to maintain a specific pH range and to produce a specific volume ratio of aqueous to organic phase. By this method, it is possible to employ a minimum amount of phosgene. The reaction may be conducted batchwise or continuously. The bischloroformate composition may be employed for the preparation of cyclic polycarbonate oligomers or linear polycarbonate, and linear polycarbonate formation may be integrated with bischloroformate composition formation in a batch or continuous process.
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公开(公告)号：US08214223B2
公开(公告)日：2012-07-03
申请号：US13246572
申请日：2011-09-27
CPC分类号： G10L19/008 , G10L19/02 , G10L19/022 , H04S3/008
摘要： A method, an apparatus, a computer readable storage medium configured with instructions for carrying out a method, and logic encoded in one or more computer-readable tangible medium to carry out actions. The method is to decode audio data that includes N.n channels to M.m decoded audio channels, including unpacking metadata and unpacking and decoding frequency domain exponent and mantissa data; determining transform coefficients from the unpacked and decoded frequency domain exponent and mantissa data; inverse transforming the frequency domain data; and in the case M
摘要翻译： 配置有用于执行方法的指令的方法，装置，计算机可读存储介质，以及编码在一个或多个计算机可读有形介质中以执行动作的逻辑。 该方法是将包括N.n个信道的音频数据解码为M.m个解码的音频信道，包括解包元数据和解码和解码频域指数和尾数数据; 从解压缩和解码的频域指数和尾数数据确定变换系数; 逆变换频域数据; 在M
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公开(公告)号：US5034505A
公开(公告)日：1991-07-23
申请号：US559130
申请日：1990-07-27
申请人： James M. Silva , Thomas J. Fyvie
发明人： James M. Silva , Thomas J. Fyvie
摘要： Aromatic bischloroformate compositions are interfacially converted to polycarbonates in a single step which includes capping with a monohydroxyaromatic compound. The reaction is conducted by adding an interfacial polycarbonate formation catalyst such as triethylamine and incrementally adding a base such as aqueous sodium hydroxide solution, without pH control, until the reaction mixture is non-emulsified. The amount of base to be added without pH control may be determined by titration. Further base is then added as necessary to provide a pH in the range of about 10-13.
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公开(公告)号：US4814429A
公开(公告)日：1989-03-21
申请号：US136629
申请日：1987-12-22
申请人： James M. Silva
发明人： James M. Silva
IPC分类号： C07D321/00 , C07C68/06 , C07C69/96 , C08G64/26 , C08G63/62
CPC分类号： C08G64/26
摘要： Cyclic polycarbonate oligomers are prepared by the reaction of a bisphenol bischloroformate (e.g. bisphenol A bischloroformate) with an amine (e.g., triethylamine) and an alkali or alkaline earth metal hydroxide in at least two back-mixed vessels and in a mixed aqueous-organic system. The liquid contents of each vessel except the last are passed to the next vessel and each vessel is simultaneously charged with reactants, with the concentration of carbonate units in the reactants being less in the first vessel than in subsequent vessels. By this method, there is obtained a cyclic product containing a minimum proportion of linear polycarbonates.
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10.发明授权Thermally stable polycarbonates, thermoplastic compositions thereof, and articles formed therefrom 有权热稳定的聚碳酸酯，其热塑性组合物和由其形成的制品公开(公告)号：US07531615B2
公开(公告)日：2009-05-12
申请号：US11324949
申请日：2006-01-04
CPC分类号： C08G64/1608 , C08G63/64 , C08G64/186 , Y10T428/31504 , Y10T428/31507 , Y10T428/31855
摘要： A polycarbonate such as aliphatic/aromatic polycarbonate comprises repeating structural carbonate units of the formula (H-1): in which Rh is a radical having the formula (H-2): wherein each of R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, and R28 is independently a hydrogen, a C1-C6 alkyl group, or a halogen substituted C1-C6 alkyl group. The polycarbonate, and a thermoplastic composition thereof, have improved thermal stability, cost-effectiveness, and exhibit improved manufacturability such as, for example, minimum cyclic carbonate formation and minimum amine acceptor requirement.
摘要翻译： 聚碳酸酯如脂肪族/芳香族聚碳酸酯包括重复式（H-1）的结构碳酸酯单元：其中Rh是具有式（H-2）的基团：其中R11，R12，R13，R14，R15， R16，R17，R18，R19，R20，R21，R22，R23，R24，R25，R26，R27和R28独立地为氢，C1-C6烷基或卤素取代的C1-C6烷基。 聚碳酸酯及其热塑性组合物具有改进的热稳定性，成本效益，并且显示出改进的可制造性，例如最小的环状碳酸酯形成和最小的胺受体要求。
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