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公开(公告)号：US5990262A
公开(公告)日：1999-11-23
申请号：US875194
申请日：1997-09-15
CPC分类号： C08G64/20 , C08G64/24 , C08G64/307
摘要： According to this invention, the prior art problem that relatively many steps and a long time are required for obtaining a high quality polycarbonate of a high molecular weight by a solid phase polymerization method has been solved by subjecting a polycarbonate oligomer to swollen solid phase polymerization under an atmosphere containing a swelling solvent gas or subjecting a polycarbonate oligomer to poor solvent solid phase polymerization under a stream of a poor solvent gas.
摘要翻译： PCT No.PCT / JP96 / 00220 Sec。 371日期：1997年9月15日 102（e）1997年9月15日PCT PCT 1996年2月2日PCT公布。 第WO96 / 23831号公报 日期1996年8月8日根据本发明，通过固相聚合法获得高分子量聚碳酸酯所需的相对多个步骤和长时间的现有技术问题已经通过将聚碳酸酯低聚物 在含有溶胀溶剂气体的气氛下进行溶胀固相聚合，或者在不良溶剂气体流下使聚碳酸酯低聚物进行不良溶剂固相聚合。
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2.发明授权Method for producing granular polycarbonate prepolymer for solid-state polymerization 失效用于固相聚合的颗粒状聚碳酸酯预聚物的制备方法
公开(公告)号：US5981051A
公开(公告)日：1999-11-09
申请号：US29069
申请日：1998-03-02
CPC分类号： C08J3/14 , B29B9/12 , C08G64/20 , C08J3/12 , B29K2069/00 , C08J2369/00 , Y10T428/24372 , Y10T428/24405 , Y10T428/249953 , Y10T428/2982
摘要： Provided is a method for producing a granular polycarbonate prepolymer for solid-phase polymerization, comprising dissolving a polycarbonate prepolymer in a solvent under heat, then crystallizing it by cooling, and shaping it. The grains of the granular prepolymer hardly fuse together in polymerization, and the granular prepolymer is suitable for high-speed solid-phase polymerization to give polycarbonate.
摘要翻译： PCT No.PCT / JP96 / 02046 Sec。 371日期1998年3月2日 102（e）1998年3月2日PCT 1996年7月22日PCT公布。 出版物WO97 / 08227 日期1997年3月6日提供了一种生产用于固相聚合的颗粒状聚碳酸酯预聚物的方法，包括将聚碳酸酯预聚物在加热下溶解在溶剂中，然后通过冷却使其结晶并成型。 颗粒状预聚物的颗粒在聚合过程中几乎不融合，粒状预聚物适用于高速固相聚合，得到聚碳酸酯。
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公开(公告)号：US5922826A
公开(公告)日：1999-07-13
申请号：US875402
申请日：1997-07-31
申请人： Shigeki Kuze , Kenji Tanaka , Kouichi Suga , Yoshikatsu Seino , Akihiro Shishikura , Noriyuki Kunishi
发明人： Shigeki Kuze , Kenji Tanaka , Kouichi Suga , Yoshikatsu Seino , Akihiro Shishikura , Noriyuki Kunishi
CPC分类号： C08G64/307 , C08G64/22 , C08G64/24
摘要： There are disclosed a process for producing a polycarbonate through transesterification which comprises using, as a polymerization catalyst, (1) a combination of a nitrogen-containing organic basic compound and a quaternary phosphonium salt, (2) a tetraarylphosphonium salt having a specific chemical structure, or (3) a quaternary phosphonium salt having a specific chemical structure and containing a branched alkyl group; and a process for producing a polycarbonate which comprises the steps of preparing a polycarbonate prepoplymer by preliminary polymerization and thereafter polymerizing the resultant prepolymer in a state of a solid phase by the use of a quaternary phosphonium salt as a catalyst.By using any of these processes it is made possible to produce, in extremely high efficiency, a high-quality polycarbonate being excellent in appearance, heat resistance, hydrolysis resistance and the like.
摘要翻译： PCT No.PCT / JP96 / 00178 Sec。 371日期1997年7月31日 102（e）日期1997年7月31日PCT提交1996年1月31日PCT公布。 第WO96 / 23832号公报 日期：1996年8月8日公开了通过酯交换反应生产聚碳酸酯的方法，该方法包括使用（1）含氮有机碱性化合物和季鏻盐的组合作为聚合催化剂，（2）四芳基鏻盐 具有特定的化学结构，或（3）具有特定化学结构并含有支链烷基的季鏻盐; 和聚碳酸酯的制造方法，其特征在于，包括以下步骤：通过预聚合制备聚碳酸酯预聚物，然后通过使用季鏻盐作为催化剂，使所得预聚物以固相的状态聚合。 通过使用任何这些方法，可以以极高的效率制造出外观，耐热性，耐水解性等优异的高品质聚碳酸酯。
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公开(公告)号：US5504187A
公开(公告)日：1996-04-02
申请号：US279845
申请日：1994-07-26
CPC分类号： C08J3/14 , C08J2369/00 , Y10T428/2982
摘要： Granules collected from a solution of a polycarbonate, an integrated structure of independent fine particles constituting the granules being formed at least on the surfaces of the granules; and a process for preparing the granules of the polycarbonate which comprises the steps of adding a poor solvent to the polycarbonate solution, and then agitation-granulating fine particles of the polycarbonate into the granules, while stirring involving a shear force-imparting function is carried out under heating. According to the present invention, the polycarbonate or the like can be collected from its organic solvent solution as the granules having good drying properties.
摘要翻译： 从聚碳酸酯溶液收集的颗粒，至少在颗粒表面上形成构成颗粒的独立细颗粒的整体结构; 以及制备聚碳酸酯颗粒的方法，该方法包括以下步骤：向聚碳酸酯溶液中加入不良溶剂，然后在进行涉及剪切力赋予功能的搅拌下，将聚碳酸酯的细颗粒搅拌成颗粒。 在加热。 根据本发明，作为具有良好干燥性能的颗粒，可以从其有机溶剂溶液中收集聚碳酸酯等。
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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
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。
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公开(公告)号：US06605221B2
公开(公告)日：2003-08-12
申请号：US09926721
申请日：2001-12-07
IPC分类号： B01D1104
CPC分类号： C08G64/406
摘要： Provided is a method for washing an impurities-containing polycarbonate/organic solvent solution with an aqueous washing solution, which comprises monitoring the viscosity of the mixture dispersion of the polycarbonate/organic solvent solution and the aqueous washing solution, and controlling the blend ratio of the aqueous washing solution in the system on the basis of the relation between the phase condition and the viscosity of the mixture dispersion. In the method of washing a polycarbonate/organic solvent solution with an aqueous washing solution, the amount of the washing solution to be used is reduced, and the mixture dispersion of the two solutions is stabilized at a high level of washing efficiency. The washing method is economical in practical use.
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7.发明授权
公开(公告)号：US5470937A
公开(公告)日：1995-11-28
申请号：US137108
申请日：1993-10-18
IPC分类号： C08G64/14 , G02B1/04 , G02B5/30 , G02F1/13363 , C08G64/00
CPC分类号： G02F1/13363 , C08G64/14 , G02B1/04 , G02B5/3083 , Y10T428/31507
摘要： A phase difference compensation film formed of a polycarbonate, which can be used in a liquid crystal display and which shows a decreased change in retardation caused by a temperature change at a stretch forming time due to the use of a polycarbonate having a branched structure and having a viscosity-average molecular weight of 40,000 or less as the above polycarbonate.
摘要翻译： PCT No.PCT / JP93 / 00237 Sec。 371日期：1993年10月18日 102（e）日期1993年10月18日PCT 1993年2月25日PCT公布。 出版物WO93 / 17358 日期：1993年9月2日。一种由聚碳酸酯形成的相位差补偿膜，其可用于液晶显示器，并且显示出由于使用 作为上述聚碳酸酯，具有支链结构，粘均分子量为40,000以下的聚碳酸酯。
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公开(公告)号：US20080242828A1
公开(公告)日：2008-10-02
申请号：US10586728
申请日：2005-02-22
申请人： Noriyuki Kunishi , Eizo Saito
发明人： Noriyuki Kunishi , Eizo Saito
IPC分类号： C08G64/28
CPC分类号： C08G64/24 , C08G64/205
摘要： Provided a process for producing a polycarbonate which comprises reacting an aqueous alkali solution of a dihydric phenol with phosgene in the presence of an organic solvent to produce a polycarbonate oligomer and subsequently polycondensing the oligomer, wherein an emulsion solution of a polycarbonate oligomer-containing organic solvent obtained in the polycarbonate oligomer production step is introduced into a coalescer to separate the emulsion solution into a polycarbonate oligomer-containing organic solvent phase and an aqueous phase, and the polycarbonate oligomer-containing organic solvent phase is subjected to polycondensation. Thus the emulsion solution of a polycarbonate oligomer-containing organic solvent obtained in the polycarbonate oligomer production step is efficiently separated to reduce the content of impurity-containing water in the oligomer for producing a polycarbonate having excellent quality and to a obtain wastewater having a low content of organic materials.
摘要翻译： 提供一种聚碳酸酯的制造方法，其特征在于，在有机溶剂的存在下，使二元酚的碱性水溶液与光气反应，制造聚碳酸酯低聚物，然后使所述低聚物缩聚，将含有聚碳酸酯低聚物的有机溶剂 将聚碳酸酯低聚物制造工序中得到的聚碳酸酯低聚物的制造工序引入聚结器中，将乳液溶液分离成含有聚碳酸酯低聚物的有机溶剂相和水相，使含聚碳酸酯低聚物的有机溶剂相进行缩聚。 因此，在聚碳酸酯低聚物制造工序中得到的含聚碳酸酯低聚物的有机溶剂的乳液溶液被有效地分离，以降低制造具有优良品质的聚碳酸酯的低聚物中含杂质水的含量，并获得含量低的废水 的有机材料。
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公开(公告)号：US5475084A
公开(公告)日：1995-12-12
申请号：US327027
申请日：1994-05-03
申请人： Masaya Okamoto , Noriyuki Kunishi
发明人： Masaya Okamoto , Noriyuki Kunishi
CPC分类号： C08J3/14 , B01F5/0413 , B01F5/043 , C08J2369/00
摘要： A process for the production of a polycarbonate powder comprising introducing an organic solvent solution of polycarbonate and steam into a mixing nozzle and obtaining the polycarbonate powder from a mixture ejected from the mixing nozzle, wherein the organic solvent solution contains 3 to 45% by weight of the polycarbonate, and the ratio of the weight of steam/the weight of an organic solvent in the organic solvent solution is 1/10 to 1/5.
摘要翻译： 一种生产聚碳酸酯粉末的方法，包括将聚碳酸酯和蒸汽的有机溶剂溶液引入混合喷嘴，并从混合喷嘴喷出的混合物中获得聚碳酸酯粉末，其中有机溶剂溶液含有3-45重量％ 聚碳酸酯，有机溶剂溶液中的蒸汽重量/有机溶剂的重量比为1/10〜1/5。
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公开(公告)号：US5322919A
公开(公告)日：1994-06-21
申请号：US796055
申请日：1991-11-20
CPC分类号： C08G64/30
摘要： A process for producing polycarbonates which comprises transesterifying by reacting (A) at least one compound selected from the group consisting of aromatic dihydroxy compounds, aliphatic dihydroxy compounds, bisesters of aromatic dihydroxy compounds, bisesters of aliphatic dihydroxy compounds, carbonates of aromatic dihydroxy compounds and carbonates of aliphatic dihydroxy compounds, with (B) at least one compound selected from the group of diaryl carbonates, dialkyl carbonates, and alkylaryl carbonates, at a transesterification temperature of 100.degree. C. to 330.degree. C. in the presence of an inert solvent in an amount of 1 to 60% by weight based on the total of the theoretical amount of polycarbonate produced from the said compounds (A) and (B) and the amount of the inert solvent. According to the present invention, a polycarbonate which is excellent in color tone (transparency), heat resistance, and water resistance can be efficiently and simply produced at a low cost.
摘要翻译： 一种制备聚碳酸酯的方法，其包括通过使（A）至少一种选自芳族二羟基化合物，脂族二羟基化合物，芳族二羟基化合物的混合物，脂族二羟基化合物的混合物，芳族二羟基化合物的碳酸酯和碳酸酯 的脂肪族二羟基化合物与（B）至少一种选自碳酸二芳基酯，碳酸二烷基酯和碳酸烷基芳基酯的化合物在100℃至330℃的酯交换温度下在惰性溶剂存在下反应 基于由所述化合物（A）和（B）生产的聚碳酸酯的理论量的总和与惰性溶剂的量的总量，为1至60重量％。 根据本发明，可以低成本有效且简单地制造色调（透明性），耐热性和耐水性优异的聚碳酸酯。
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