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公开(公告)号：US5336750A
公开(公告)日：1994-08-09
申请号：US20502
申请日：1993-02-22
CPC分类号： C08G64/307
摘要： A process for the preparation of a polycarbonate comprising reacting a diaryl carbonate with a bisphenol to produce a polycarbonate and a phenol, regenerating the diaryl carbonate by reacting the phenol byproduct with a carbonyl halide, and optionally recycling the hydrogen halide using a metal Redox captive halogen swing reactor system.
摘要翻译： 一种制备聚碳酸酯的方法，包括使碳酸二芳基酯与双酚反应以制备聚碳酸酯和苯酚，通过使苯酚副产物与羰基卤反应再生碳酸二芳基酯，并且任选地使用金属氧化还原电荷卤素 摆动反应堆系统。
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公开(公告)号：US5183920A
公开(公告)日：1993-02-02
申请号：US819895
申请日：1992-01-13
申请人： Harold D. Myers
发明人： Harold D. Myers
IPC分类号： C07C68/00
CPC分类号： C07C68/005 , Y02P20/125 , Y02P20/582
摘要： An integrated process for the production of dimethyl carbonate is disclosed. The processes utilizes oxygen and an inexpensive carbon source such as natural gas as reactants. Other reactants are generated within the process and used without isolation. The process produces dimethyl carbonate and water with other by-products being recycled.
摘要翻译： 公开了一种用于生产碳酸二甲酯的综合方法。 该方法利用氧气和廉价的碳源，如天然气作为反应物。 在该过程中产生其他反应物并且不隔离使用。 该方法生产碳酸二甲酯和水，其他副产物被回收利用。
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公开(公告)号：US06791250B2
公开(公告)日：2004-09-14
申请号：US10278569
申请日：2002-10-23
IPC分类号： H01J550
摘要： A lamp assembly and a method for securing a base on the lamp that electrically connect a side lead wire to the base shell and that also secure the base to the lamp without using either solder or adhesive. Welding efficiency is optimized for the side lead wire to base shell connection. A metal screw base having base screw threads is screwed onto an outer jacket having a threaded seal with seal screw threads and with at least one lead wire extending out of a bottom of the seal being electrically and mechanically connected to a flag assembly being at least a wire in a close-fitted electrically nonconductive sleeve. A groove is formed across the seal screw threads, the groove being dimensioned to closely fit around the flag assembly; and the flag assembly being positioned in the groove such that an inner end of the flag assembly is electrically connected to the lead wire, and an outer, flag, end of the flag assembly is bent over a lip of the base and welded to an outside surface of the base, with the weld preferably being near to the lip.
摘要翻译： 一种灯组件和一种用于固定灯上的基座的方法，该基座将侧引线电连接到基座外壳上，并且还将基座固定在灯上而不使用焊料或粘合剂。 焊接效率优化为侧引线与底壳连接。 具有基础螺纹的金属螺丝底座螺纹连接到具有密封螺纹的螺纹密封件的外套上，并且从密封件的底部伸出的至少一根引线电连接和机械地连接至至少一个 电线在紧密配合的非导电套管中。 横跨密封螺纹形成凹槽，凹槽的尺寸被设计成紧密地配合在标志组件周围; 并且所述标志组件定位在所述凹槽中，使得所述标志组件的内端电连接到所述引线，并且所述标志组件的外部标志端在所述基座的唇缘上弯曲并焊接到外部 基部的表面，焊缝优选靠近唇缘。
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4.发明授权Preparation of polycarbonates comprising separating bisphenol, converting bisphenol to diaryl carbonate and recycling 失效包含分离双酚的聚碳酸酯的制备，将二苯醚转化为二元碳酸酯和回收
公开(公告)号：US5189139A
公开(公告)日：1993-02-23
申请号：US741925
申请日：1991-08-08
CPC分类号： C08G64/307
摘要： A process for the preparation of a polycarbonate comprising reacting a diaryl carbonate with a bisphenol to produce a polycarbonate and a phenol, regenerating the diaryl carbonate by reacting the phenol byproduct with a carbonyl halide, and optionally recycling the hydrogen halide using a metal Redox captive halogen swing reactor system.
摘要翻译： 一种制备聚碳酸酯的方法，包括使碳酸二芳基酯与双酚反应以制备聚碳酸酯和苯酚，通过使苯酚副产物与羰基卤反应再生碳酸二芳基酯，并且任选地使用金属氧化还原电荷卤素 摆动反应堆系统。
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