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91. 发明授权

US5306802A Polycarbonate copolymer and method for production thereof 失效
标题翻译：聚碳酸酯共聚物及其制造方法
公开(公告)号：US5306802A
公开(公告)日：1994-04-26
申请号：US31631
申请日：1993-03-15
申请人： Ryozo Okumura , Shigeki Kuze , Noriyuki Kunishi
发明人： Ryozo Okumura , Shigeki Kuze , Noriyuki Kunishi
IPC分类号： C08G64/00 , C08G64/10 , C08G64/22 , C08G64/24 , C08G64/26
CPC分类号： C08G64/10 , C08G64/24
摘要： Disclosed herein is a polycarbonate copolymer comprising repeating units respectively made of a bisphenol A and a tetrahalogenobisphenol A and having a trihalogenophenoxy group as an end group at the terminal, particularly both terminals thereof and a method for efficiently producing said polycarbonate copolymer. This polycarbonate copolymer is superior in impact resistance, flame retardance, molding thermostability and the like, is good in hydrolytic resistance, is much less liable to cause a mold rust and has high quality. Therefore, this polycarbonate copolymer will be extensively used in various industrial materials, for example as the flame retardant parts for household electric appliances, office automation apparatuses and the like.
摘要翻译：本文公开了包含分别由双酚A和四卤代双酚A制成的重复单元和在末端具有三卤代苯氧基作为端基，特别是两个末端的聚碳酸酯共聚物和有效制备所述聚碳酸酯共聚物的方法。该聚碳酸酯共聚物的耐冲击性，阻燃性，成型热稳定性等优异，耐水解性良好，容易引起模具锈蚀且质量高的特性。因此，这种聚碳酸酯共聚物将广泛用于各种工业材料，例如家用电器，办公自动化设备等的阻燃部件。

92. 发明授权

US5288837A Preparation of polycarbonate with subsequent addition of chain terminator and base 失效
标题翻译：随后加入链终止剂和碱的聚碳酸酯的制备
公开(公告)号：US5288837A
公开(公告)日：1994-02-22
申请号：US43103
申请日：1993-04-05
申请人： Sarat Munjal , Thomas M. Wardlow , Andrew F. Hall
发明人： Sarat Munjal , Thomas M. Wardlow , Andrew F. Hall
IPC分类号： C08G64/14 , C08G64/24 , C08G64/20
CPC分类号： C08G64/24 , C08G64/14
摘要： A process for preparing polycarbonate wherein a chain terminator is added to the reaction mixture after substantial reaction of a carbonate precursor, a coupling catalyst is added to the reaction mixture after substantial reaction of the chain terminator, and base is added to the reaction mixture after reaction mixture after substantial reaction of the chain terminator in an amount sufficient to give a negative chloroformate test.
摘要翻译：一种制备聚碳酸酯的方法，其中在碳酸酯前体显着反应之后将反应混合物加入到反应混合物中，将偶联催化剂加入到反应混合物中，在反应终了后，将反应混合物加入到反应混合物中连续终止剂大量反应后，混合物的量足以产生负氯甲酸酯试验。

93. 发明授权

US5258484A Process for the production of polycarbonate 失效
标题翻译：聚碳酸酯生产工艺
公开(公告)号：US5258484A
公开(公告)日：1993-11-02
申请号：US902356
申请日：1992-06-19
申请人： Reinhard Schomacker , Uwe Hucks , Gunther Weymans , Wolfgang Herrig , Jurgen Kirsch
发明人： Reinhard Schomacker , Uwe Hucks , Gunther Weymans , Wolfgang Herrig , Jurgen Kirsch
IPC分类号： C08G64/22 , C08G64/24
CPC分类号： C08G64/24
摘要： A process for the continuous production of a thermoplastic aromatic polycarbonate is disclosed. Accordingly, in a reactor system which includes a tube reactor and a tank equipped with a stirrer, there are reacted a preheated dialkali diphenolate aqueous solution with gaseous phosgene in CH.sub.2 Cl.sub.2 and/or in chlorobenzene solution containing excess phosgene, in a mixer to form a mixed emulsion. The emulsion is then transported at least partly against the force of gravity into the tube reactor to facilitate a polycondensation reaction and in which after a residence time of at least 10 seconds and without dissipation of the heat of reaction there is added a chain terminator. The heat of reaction is dissipated in said tank and aqueous sodium hydroxide and catalyst are added to complete the reaction. The process according to the invention leads to high yields of phosgene.
摘要翻译：公开了连续生产热塑性芳族聚碳酸酯的方法。因此，在包括管式反应器和装有搅拌器的罐的反应器系统中，在混合器中使预热的二元醇二酚盐水溶液与气态光气在CH 2 Cl 2中和/或含有过量光气的氯苯溶液中反应，形成混合乳液。然后将乳液至少部分地抵抗重力输送到管式反应器中以促进缩聚反应，并且其中在至少10秒的停留时间之后并且不消耗反应热量时，添加了链终止剂。在所述槽中消散反应热，加入氢氧化钠水溶液和催化剂以完成反应。根据本发明的方法导致高产率的光气。

94. 发明授权

US5248754A Process for continuous production of polycarbonate oligomer 失效
标题翻译：连续生产聚碳酸酯低聚物的方法
公开(公告)号：US5248754A
公开(公告)日：1993-09-28
申请号：US913421
申请日：1992-07-15
申请人： Hideyuki Ichihana , Noboru Yamanishi , Koji Hashimoto
发明人： Hideyuki Ichihana , Noboru Yamanishi , Koji Hashimoto
IPC分类号： C08G64/24 , C07C68/02 , C08G64/22
CPC分类号： C07C68/02
摘要： The present invention provides a process for producing a polycarbonate oligomer continuously, which comprises feeding (a) an aqueous alkali solution of a dihydric phenol and (b) phosgene into a tower type reactor from the bottom to react them in the reactor without using any organic solvent and discharging the reaction mixture from the top of the reactor. According to this process, an oligomer giving a polycarbonate of stable quality can be produced using a simple apparatus.

95. 发明授权

US5210172A Method for the continuous preparation of carbonate oligomers with loop reactor, static mixer and plug flow 失效
标题翻译：用环流反应器，静态混合器和活塞流连续制备碳酸酯低聚物的方法
公开(公告)号：US5210172A
公开(公告)日：1993-05-11
申请号：US736183
申请日：1991-07-26
申请人： Hendricus H. M. van Hout , Martin H. Oyevaar , Bert J. Held
发明人： Hendricus H. M. van Hout , Martin H. Oyevaar , Bert J. Held
IPC分类号： C08G64/06 , B01J19/18 , B01J19/24 , C08G64/20 , C08G64/22 , C08G64/24
CPC分类号： C08G64/24 , B01J19/1881 , B01J19/2435
摘要： The invention relates to a method for the continuous preparation of carbonate oligomers by boundary face oligomerization of aromatic dihydroxy compounds with phosgene while adding base, in which the reaction is carried out in a loop-like reactor system in the absence of chain stopper and while using less than 200 ppm of catalyst related to the organic solvent using at least one static mixer and plug folw, optionally in combination with a stirred tank reactor.
摘要翻译：本发明涉及一种连续制备碳酸酯低聚物的方法，其通过芳香族二羟基化合物与光气的边界低聚反应，同时加入碱，其中反应在没有链停止剂的环状反应器系统中进行，并且在使用使用至少一种静态混合器和塞子，与有机溶剂相关的小于200ppm的催化剂，任选地与搅拌釜反应器组合。

96. 发明授权

US4902758A Preparation of segmented block copolycarbonates 失效
标题翻译：分段嵌段共聚碳酸酯的制备
公开(公告)号：US4902758A
公开(公告)日：1990-02-20
申请号：US261069
申请日：1988-10-24
申请人： Maurice J. Marks
发明人： Maurice J. Marks
IPC分类号： C08G64/00 , C08G64/10 , C08G64/18 , C08G64/22 , C08G64/24
CPC分类号： C08G64/10 , C08G64/18
摘要： Segmented block copolycarbonates from diphenols and tetrahalogenated diphenols are prepared by phosgenation, under interfacial reaction conditions, initially at a higher pH during which diphenol polycarbonate oligomers are formed, and thereafter at a lower pH during which tetrahalogenated diphenol bischloroformates are formed, followed by copolymerization utilizing an activated pyridine catalyst. Alternatively, diphenol polycarbonate oligomers and tetrahalogenated diphenol chloroformates may be coupled, utilizing an activated pyridine catalyst, to prepare segmented block copolycarbonates.

97. 发明授权

US4814421A Hydroxy terminated polycarbonates 失效
标题翻译：羟基封端的聚碳酸酯
公开(公告)号：US4814421A
公开(公告)日：1989-03-21
申请号：US128764
申请日：1987-12-04
申请人： Niles R. Rosenquist
发明人： Niles R. Rosenquist
IPC分类号： C08G64/24 , C08G63/64 , C08G64/00 , C08G64/14 , C08G63/62
CPC分类号： C08G64/14
摘要： A method for the preparation of polycarbonate resins bearing terminal hydroxy ester groups comprises the interfacial polymerization of a dihydric phenol with a carbonyl halide in the presence of a molecular weight controlling proportion of a compound of the formula: ##STR1## wherein R represents alkylene of 1 to about 12 carbons. The novel product resins are useful as intermediate in the preparation of copolymers with, for example, polyesteramides.

98. 发明授权

US4789730A Preparation of polycarbonate having reduced cyclic carbonate oligomer content 失效
标题翻译：制备具有降低的环状碳酸酯低聚物含量的聚碳酸酯
公开(公告)号：US4789730A
公开(公告)日：1988-12-06
申请号：US871024
申请日：1986-06-05
申请人： Duane B. Priddy
发明人： Duane B. Priddy
IPC分类号： C08G64/24 , C08G64/40 , C08G63/62
CPC分类号： C08G64/40 , C08G64/24
摘要： The present invention is directed to a continuous process which removes the 1 to 3% cyclic oligomers formed in the polycarbonate process and after hydrolysis of the oligomers recycles the resulting monomer for use in the reaction forming the polycarbonates. To remove the cyclic oligomers to a level so as to produce an improved polycarbonate product and to recover the oligomers in an economical manner for recycling in a continuous process, the selection of a solvent is unique and essential to achieve the continuous process. The solvent for the cyclic oligomers must be immiscible with water, must not react with an alkali and have a cohesive energy density of less than 90.
摘要翻译：本发明涉及一种连续的方法，其除去在聚碳酸酯工艺中形成的1至3％环状低聚物，并且在低聚物水解后再循环所得单体以用于形成聚碳酸酯的反应中。为了将环状低聚物除去至一定水平以产生改进的聚碳酸酯产物，并以经济方式回收低聚物以便在连续方法中循环使用，选择溶剂是独特的并且是实现连续方法所必需的。环状低聚物的溶剂必须与水不混溶，不能与碱反应并具有小于90的内聚能量密度。

99. 发明授权

US4558118A Two phase interfacial polycondensation polycarbonate process 失效
标题翻译：两相界面缩聚聚碳酸酯工艺
公开(公告)号：US4558118A
公开(公告)日：1985-12-10
申请号：US632995
申请日：1984-07-20
申请人： Subhas K. Sikdar
发明人： Subhas K. Sikdar
IPC分类号： C08G64/24 , C08G63/62
CPC分类号： C08G64/24
摘要： This invention relates to an improved interfacial polycondensation aromatic polycarbonate process which does not require large quantities of strong base to provide a particulate product. The process is specific to interfacial polycondensation processes wherein the polycarbonate is formed in the aqueous phase by using a low organic to aqueous phase volume ratio. The quantity of strong base required to provide a particular product is reduced by adding the aromatic dihydroxy compound to the reaction mixture in small increments. This maintains a high mole ratio of strong base to aromatic dihydroxy compound during reaction.
摘要翻译：本发明涉及改进的界面缩聚芳族聚碳酸酯方法，其不需要大量的强碱来提供颗粒产物。该方法特别适用于通过使用低有机相至水相体积比在水相中形成聚碳酸酯的界面缩聚方法。通过以小的增量向反应混合物中加入芳族二羟基化合物来减少提供特定产物所需的强碱的量。这在反应期间保持强碱与芳族二羟基化合物的高摩尔比。

100. 发明授权

US4535143A Process for the preparation of copolycarbonates of sulfonyl diphenol 失效
标题翻译：制备磺酰基二酚共聚碳酸酯的方法
公开(公告)号：US4535143A
公开(公告)日：1985-08-13
申请号：US637945
申请日：1984-08-06
申请人： Ronald L. Price , Mark W. Witman , Sivaram Krishnan
发明人： Ronald L. Price , Mark W. Witman , Sivaram Krishnan
IPC分类号： C08G63/00 , C08G63/199 , C08G64/08 , C08G64/24 , C08G63/62
CPC分类号： C08G64/24 , C08G64/081
摘要： The present invention is directed to a continuous process for the preparation of copolycarbonates of sulfonyl diphenol (SDP) containing at least about 15, preferably about 15 to about 80 percent by weight of SDP and characterized in the particular system catalyzing the process reaction. The invention thus entails improvements and modifications to the known interfacial polycondensation process rendering it applicable to the preparation of copolycarbonates containing a high level of SDP comprising a combination of catalysts namely a phase transfer catalyst and a condensation catalyst.
摘要翻译：本发明涉及制备含有至少约15重量％，优选约15至80重量％的SDP的磺酰基二酚（SDP）的共聚碳酸酯的连续方法，其特征在于催化该工艺反应的特定体系。因此，本发明需要对已知的界面缩聚方法进行改进和修改，使其适用于含有高水平SDP的共聚碳酸酯的制备，该组合包括催化剂即相转移催化剂和缩合催化剂的组合。

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