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    • 1. 发明授权
    • Method for producing an aromatic polycarbonate
    • 芳香族聚碳酸酯的制造方法
    • US5912318A
    • 1999-06-15
    • US54506
    • 1998-04-03
    • Kazumi HasegawaKyosuke KomiyaMuneaki Aminaka
    • Kazumi HasegawaKyosuke KomiyaMuneaki Aminaka
    • C08G64/20C08G64/30C08G64/00
    • C08G64/307C08G64/205
    • A method for producing an aromatic polycarbonate which comprises subjecting to a transesterification polymerization reaction at least one polymerizable material for an aromatic polycarbonate, the transesterification reaction being performed in one or more polymerizers which is or are connected through a pipeline system toward an outlet for a final aromatic polycarbonate product, wherein the pipeline system comprises one or more pipes, through which a molten aromatic polycarbonate having a number average molecular weight increased by the transesterification polymerization reaction is passed while contacting an inner wall of the pipe or pipes, the pipeline system having at least one viscous polycarbonate passage region in which a molten aromatic polycarbonate having a number average molecular weight of 6,000 or more is passed through the pipe, wherein the pipe in the at least one viscous polycarbonate passage region is heated to provide a temperature difference in the range of from -3.degree. C. to 50.degree. C. between the temperature (.degree.C.) of the outer wall of the pipe and the temperature (.degree.C.) of the aromatic polycarbonate in the polymerizer from which the aromatic polycarbonate is passed through the pipe. By the method of the present invention, a high quality aromatic polycarbonate which is not only highly colorless but also has a low foreign matter content can be easily produced.
    • 一种芳族聚碳酸酯的制造方法,其特征在于,对至少一种芳族聚碳酸酯的聚合性材料进行酯交换聚合反应,所述酯交换反应是在一个或多个聚合反应器中进行的,所述聚合反应器是通过管道系统连接到出口, 芳族聚碳酸酯产品,其中管道系统包括一个或多个管道,使通过酯交换聚合反应增加数均分子量的熔融芳族聚碳酸酯通过该管道接触管道或管道的内壁,管道系统具有 至少一个粘性聚碳酸酯通道区域,其中数均分子量为6000以上的熔融芳族聚碳酸酯通过管,其中加热至少一个粘性聚碳酸酯通道区域中的管道以提供在该范围内的温度差 的-3 DE 在管道外壁的温度(℃)和温度(℃)之间,在聚合器中芳族聚碳酸酯通过管道的温度(℃)之间变化到50℃。 通过本发明的方法,可以容易地制备高品质的芳族聚碳酸酯,其不仅高度无色,而且异物含量低。
    • 2. 发明授权
    • Process for producing aromatic polycarbonate
    • 制备芳香族聚碳酸酯的方法
    • US06320015B1
    • 2001-11-20
    • US09674435
    • 2000-11-01
    • Kyosuke KomiyaShinsuke FukuokaMuneaki AminakaKazumi Hasegawa
    • Kyosuke KomiyaShinsuke FukuokaMuneaki AminakaKazumi Hasegawa
    • C08G6400
    • C08G64/307
    • Disclosed is a method for producing an aromatic polycarbonate, which comprises treating a molten aromatic polycarbonate prepolymer (obtained by reacting an aromatic dihydroxy compound with a diaryl carbonate) with an inert gas under a predetermined pressure to thereby cause the molten prepolymer to absorb the inert gas, and subjecting the resultant molten prepolymer having the inert gas absorbed therein to polymerization, under a pressure lower than the above-mentioned predetermined pressure employed for the inert gas absorption, to thereby polymerize the prepolymer to a predetermined degree of polymerization. By the method of the present invention, a high quality aromatic polycarbonate which is colorless and has excellent mechanical properties can be produced at high polymerization rate even without using a large amount of an inert gas. Further, even if the production of an aromatic polycarbonate is conducted in a continuous manner, the molecular weight of the produced aromatic polycarbonate can be maintained at a desired level, so that the high quality polycarbonate can be stably produced for a prolonged period of time. Therefore, the method of the present invention is commercially very advantageous.
    • 公开了一种芳族聚碳酸酯的制造方法,其包括将熔融芳族聚碳酸酯预聚物(通过芳香族二羟基化合物与碳酸二芳基酯反应得到)与惰性气体在规定压力下进行处理,使熔融预聚物吸收惰性气体 并且在低于上述用于惰性气体吸收的预定压力的压力下,将其中吸收有惰性气体的所得熔融预聚物进行聚合,从而将预聚物聚合至预定聚合度。 通过本发明的方法,即使不使用大量的惰性气体,也可以高聚合速度生产无色且机械性能优异的高品质芳族聚碳酸酯。 此外,即使以连续的方式进行芳族聚碳酸酯的制造,也可以将所制造的芳香族聚碳酸酯的分子量保持在期望的水平,从而能够长时间稳定地制造高品质的聚碳酸酯。 因此,本发明的方法在商业上非常有利。
    • 3. 发明授权
    • Method for producing an aromatic polycarbonate
    • 芳香族聚碳酸酯的制造方法
    • US5952449A
    • 1999-09-14
    • US53656
    • 1998-04-02
    • Muneaki AminakaKyosuke KomiyaKazumi Hasegawa
    • Muneaki AminakaKyosuke KomiyaKazumi Hasegawa
    • B01J19/24C08G64/20C08G64/30C08G64/00
    • B01J19/2465B01J19/242B01J19/2425C08G64/205C08G64/307B01J2219/00094B01J2219/00162B01J2219/00168
    • A method for producing an aromatic polycarbonate, which comprises subjecting to a transesterification polymerization reaction at least one polymerizable material for an aromatic polycarbonate. The transesterification polymerization reaction is performed in one or more polymerizers which is or are connected through a pipeline system. The pipeline system comprises one or more pipes through which a molten aromatic polycarbonate having a number average molecular weight increased by the transesterification polymerization reaction is passed while contacting an inner wall of the pipe or pipes. The pipeline system has at least one viscous polycarbonate passage region in which a molten aromatic polycarbonate having a number average molecular weight of 4,000 or more is passed through the pipe. The pipes in the viscous polycarbonate passage region of the pipeline system have no bent portion or not more than 50 bent portions in total. A high quality aromatic polycarbonate is produced, which is colorless and has a low foreign matter content.
    • 一种芳族聚碳酸酯的制造方法,其特征在于,对至少一种芳香族聚碳酸酯的聚合性物质进行酯交换聚合反应。 酯交换聚合反应在一种或多种通过管道系统连接或通过管道系统连接的聚合反应器中进行。 管道系统包括一个或多个管道,通过其中通过酯交换聚合反应增加数均分子量的熔融芳族聚碳酸酯通过该管道,同时接触管道或管道的内壁。 管道系统具有至少一个粘性聚碳酸酯通道区域,其中数均分子量为4000以上的熔融芳族聚碳酸酯通过管道。 管道系统的粘性聚碳酸酯通路区域中的管道总共没有弯曲部分或不超过50个弯曲部分。 产生高品质的芳族聚碳酸酯,其是无色的并且具有低的异物含量。
    • 4. 发明授权
    • System and process for producing polycondensation polymer
    • 制备缩聚聚合物的体系和方法
    • US06265526B1
    • 2001-07-24
    • US09674719
    • 2000-11-06
    • Kyosuke KomiyaMuneaki Aminaka
    • Kyosuke KomiyaMuneaki Aminaka
    • C08G6400
    • C08G69/04C08G63/785C08G64/205C08G69/28C08G85/00
    • Disclosed is a system for producing a polycondensation polymer comprising (A) an inert gas absorption device for causing a molten polycondensation prepolymer to absorb an inert gas to thereby obtain (&agr;) a molten prepolymer having the inert gas absorbed therein, (B) a polymerizer device for polymerizing inert gas-absorbed molten prepolymer (&agr;) under reduced pressure, and (C) a pipe for transferring inert gas-absorbed molten prepolymer (&agr;) from absorption device (A) to polymerizer device (B), wherein absorption device (A) and polymerizer device (B) are arranged in this order and connected to each other through pipe (C). Also disclosed is a method for producing a polycondensation polymer by using the above-mentioned system. By the use of the system or method of the present invention, it has become possible to produce a colorless, high quality polycondensation polymer at high polymerization rate even without using a large amount of an inert gas.
    • 本发明公开了一种缩聚聚合物的制造方法,其特征在于,包括:(A)使熔融缩聚预聚物吸收惰性气体的惰性气体吸收装置,从而得到(α)吸收有惰性气体的熔融预聚物,(B)聚合反应器 用于在减压下聚合惰性气体吸收的熔融预聚物(α)的装置,和(C)用于将惰性气体吸收的熔融预聚物(α)从吸收装置(A)转移到聚合反应器装置(B)的管道,其中吸收装置 A)和聚合反应器装置(B)按顺序排列并通过管道(C)彼此连接。 还公开了通过使用上述系统制备缩聚聚合物的方法。 通过使用本发明的系统或方法,即使不使用大量的惰性气体,也可以以高聚合速率制备无色高品质的缩聚聚合物。