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公开(公告)号：US06277946B1
公开(公告)日：2001-08-21
申请号：US09567826
申请日：2000-05-09
申请人： Johannes Jacobus van Heijkant , Christopher Poirier , Tomoaki Shimoda , Akio Kanezawa , Carlos Godinez Seoane
发明人： Johannes Jacobus van Heijkant , Christopher Poirier , Tomoaki Shimoda , Akio Kanezawa , Carlos Godinez Seoane
IPC分类号： C08G6400
CPC分类号： C08G64/307 , G11B7/253
摘要： A method is provided for the preparation of polycarbonates by the reaction of a diaryl carbonate, such as DPC and a dihydric phenol, such as BPA. The method utilizes the steps of successively processing the diaryl carbonate and the dihydric phenol in a melt in a first reaction stage, a second reaction stage and at least a first polymerization stage, and shifts the processing conditions such that the desired low viscosity/high end-cap product is obtained. This is achieved by having the ratio of diaryl carbonate to dihydric phenol in the melt prior to the first reaction stage greater than 1.08; and by controlling the temperature and residence time in the first polymerization stage to provide a polycarbonate product having a melt flow rate at 250° C. of greater than 10 g/min and an end-cap level of at least 90%. The method of the invention can be used in a linear manufacturing process, in which there is one product produced. The method of the invention can also be incorporated into a multi-line manufacturing process for the simultaneous production of more than one product. Thus, a stream of product produced from the first polymerization stage may be split into two or more lines which are further processed to produce, for example, a low viscosity, high end-cap product and a medium viscosity, moderate end-cap product.
摘要翻译： 提供了通过碳酸二芳基酯如DPC和二元酚如BPA的反应来制备聚碳酸酯的方法。 该方法采用在第一反应阶段，第二反应阶段和至少第一聚合阶段中在熔体中连续加工碳酸二芳基酯和二元酚的步骤，并使加工条件转变为所需的低粘度/高端 -cap产品。 这通过在第一反应阶段之前使熔体中的碳酸二芳基酯与二元酚的比率大于1.08来实现; 并且通过控制在第一聚合阶段中的温度和停留时间被选择以提供熔体流动速率在250℃下大于10g / 10分钟且端帽水平至少为90％的聚碳酸酯产品。 本发明的方法可以用于生产一种产品的线性制造过程中。 本发明的方法还可以并入用于同时生产多于一种产品的多线制造工艺中。 因此，从第一聚合阶段生产的产品流可以分成两行或更多行，其进一步加工以产生例如低粘度，高端帽产品和中等粘度的适中的端帽产品。
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2.发明授权Hot-melt polycondensation method for manufacturing a polycarbonate composition 失效用于制造聚碳酸酯组合物的热熔缩缩方法
公开(公告)号：US5514767A
公开(公告)日：1996-05-07
申请号：US281965
申请日：1994-07-28
IPC分类号： C08G64/04 , C08G64/00 , C08G64/20 , C08G64/30 , C08G64/40 , C08G64/42 , C08K3/00 , C08K3/20 , C08K5/36 , C08K5/41 , C08K5/42 , C08L69/00
CPC分类号： C08G64/307
摘要： The method of the present invention is a hot-melt polycondensation for an aromatic dihydroxy compound and a dicarbonate in the presence of a basic catalyst, adding sulfur-containing acid compound with a pKa value less than 3 or the derivative thereof, and 5-1,000 ppm of water, and additives as needed for the polycarbonate while the reaction product polycarbonate is still in a molten state, and kneading the material.
摘要翻译： 本发明的方法是在碱性催化剂存在下加入芳族二羟基化合物和二碳酸酯的加热熔融缩聚反应，加入pKa值小于3的含硫酸化合物或其衍生物，5-1000 ppm的水和聚碳酸酯所需的添加剂，同时反应产物聚碳酸酯仍处于熔融状态，并捏合该材料。
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3.发明授权
公开(公告)号：US5364926A
公开(公告)日：1994-11-15
申请号：US22710
申请日：1993-03-01
IPC分类号： C08G64/20 , C08G64/30 , C08G64/40 , C08K3/00 , C08K3/30 , C08K3/32 , C08K5/00 , C08K5/13 , C08K5/1515 , C08K5/36 , C08K5/41 , C08K5/42 , C08K5/51 , C08K5/521 , C08K5/524 , C08L69/00 , C08G64/00
CPC分类号： C08G64/307
摘要： Object: The present invention was conceived in light of the above-described prior art. The object of this invention is to provide a method for preparing optical-grade polycarbonate compositions, which method is able to prepare with good productivity optical-grade polycarbonate compositions that have not only excellent clarity and water resistance, but also excellent retention stability such as heat stability and hue stability when molten and a low content of inclusions and impurities, and that undergo little heat deterioration.Constitution: The method for preparing optical-grade polycarbonate compositions according to this invention, which method comprises the melt-polycondensation of an aromatic dihydroxy compound and a diester carbonate in the presence of a catalyst, followed by the addition of additives [B] while the polycarbonate [A] obtained as the reaction product is in a molten state, and mixing.In this invention, it is preferable to prepare the optical-grade polycarbonate composition by filtration with a polymer filter following mixing.
摘要翻译： 对象：本发明是鉴于上述现有技术而构成的。 本发明的目的是提供一种制备光学级聚碳酸酯组合物的方法，该方法能够制备具有良好生产率的光学级聚碳酸酯组合物，其不仅具有优异的透明度和耐水性，而且具有优异的保留稳定性，例如热 熔融时的稳定性和色调稳定性以及夹杂物和杂质含量低，并且几乎不发生热劣化。 结构：根据本发明的光学级聚碳酸酯组合物的制备方法，该方法包括在催化剂存在下芳族二羟基化合物和二酯碳酸酯的熔融缩聚，然后加入添加剂[B]，同时 作为反应产物获得的聚碳酸酯[A]处于熔融状态并混合。 在本发明中，优选在混合后用聚合物过滤器过滤制备光学级聚碳酸酯组合物。
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4.发明授权Method for controlling the effective level of catalyst during the preparation of a polycarbonate polymer by transesterification 失效在通过酯交换反应制备聚碳酸酯聚合物期间控制催化剂有效水平的方法
公开(公告)号：US5886132A
公开(公告)日：1999-03-23
申请号：US777726
申请日：1996-12-20
CPC分类号： C08G64/307
摘要： A method for determining the effective level of catalyst for the preparation of a polycarbonate polymer by a transesterification reaction is disclosed. The method involves measurement of the leaving group by-product (usually phenol) produced in a test reaction between an aromatic dihydroxy compound and a carbonic acid diester, in the presence of a known amount of transesterification catalyst. The by-product production values can be compared with by-product reference values to calculate the effective level of catalyst. This data can be used to efficiently control catalytic activity in a production scale reaction for producing polycarbonate polymer.
摘要翻译： 公开了一种通过酯交换反应测定制备聚碳酸酯聚合物的催化剂的有效含量的方法。 该方法包括在已知量的酯交换催化剂的存在下测量在芳族二羟基化合物和碳酸二酯之间的测试反应中产生的离去基团副产物（通常为酚）。 副产物生产值可与副产品参考值进行比较，以计算催化剂的有效含量。 该数据可用于有效地控制用于生产聚碳酸酯聚合物的生产规模反应中的催化活性。
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公开(公告)号：US5502153A
公开(公告)日：1996-03-26
申请号：US330141
申请日：1994-10-24
CPC分类号： C08G64/307
摘要： Object: The present invention was conceived in light of the above-described prior art. The object of this invention is to provide a method for preparing optical-grade polycarbonate compositions, which method is able to prepare with good productivity optical-grade polycarbonate compositions that have not only excellent clarity and water resistance, but also excellent retention stability such as heat stability and hue stability when molten and a low content of inclusions and impurities, and that undergo little heat deterioration.Constitution: The method for preparing optical-grade polycarbonate compositions according to this invention, which method comprises the melt-polycondensation of an aromatic dihydroxy compound and a diester carbonate in the presence of a catalyst, followed by the addition of additives B! while the polycarbonate A! obtained as the reaction product is in a molten state, and mixing.In this invention, it is preferable to prepare the optical-grade polycarbonate composition by filtration with a polymer filter following mixing.
摘要翻译： 对象：本发明是鉴于上述现有技术而构成的。 本发明的目的是提供一种制备光学级聚碳酸酯组合物的方法，该方法能够制备具有良好生产率的光学级聚碳酸酯组合物，其不仅具有优异的透明度和耐水性，而且具有优异的保留稳定性，例如热 熔融时的稳定性和色调稳定性以及夹杂物和杂质含量低，并且几乎不发生热劣化。 结构：根据本发明的光学级聚碳酸酯组合物的制备方法，该方法包括在催化剂存在下芳族二羟基化合物和二酯碳酸酯的熔融缩聚，然后加入添加剂[B]，同时 作为反应产物获得的聚碳酸酯[A]处于熔融状态并混合。 在本发明中，优选在混合后用聚合物过滤器过滤制备光学级聚碳酸酯组合物。
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公开(公告)号：US06197917B1
公开(公告)日：2001-03-06
申请号：US09376450
申请日：1999-08-18
申请人： Takato Kimura , Satoru Omori , Ryozo Sato , Tomoaki Shimoda , Akio Kanezawa
发明人： Takato Kimura , Satoru Omori , Ryozo Sato , Tomoaki Shimoda , Akio Kanezawa
IPC分类号： C08G6400
CPC分类号： C08G64/307
摘要： The specification provides a method for the manufacture of a high-quality optical polycarbonate that contains few inorganic or organic impurities or other microparticles, and that has a superior hue. Specifically, the specification provides a method for the manufacture of a polycarbonate by the melt polycondensation of a bisphenol and a carbonic diester, wherein the molten mixture of a bisphenol and a carbonic diester is filtered with a membrane filter made of a fluororesin, after which melt polycondensation is conducted.
摘要翻译： 本说明书提供了制造含有少量无机或有机杂质或其它微粒并且具有优异色调的高品质光学聚碳酸酯的方法。 具体地，本说明书提供了通过双酚和碳酸二酯的熔融缩聚制造聚碳酸酯的方法，其中双酚和碳酸二酯的熔融混合物用由氟树脂制成的膜过滤器过滤，之后熔化 缩聚进行。
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7.发明授权Method for quenching of catalyst in the production of low molecular weight polycarbonates 有权生产低分子量聚碳酸酯时催化剂淬火的方法公开(公告)号：US06177536B1
公开(公告)日：2001-01-23
申请号：US09255147
申请日：1999-02-22
IPC分类号： C08G6402
CPC分类号： C08G64/307 , C08G64/406
摘要： Improved performance in high temperature, high vacuum reactors is obtained by quenching alkaline catalyst present in the product a melt polycondensation reaction using a sulfonic acid ester quencher in a carrier. The carrier if formed from a first carrier component effective to solubilize the quencher and having a lower boiling point than the quencher, and a second carrier component soluble in the first carrier component and having a higher boiling point than the quencher. An exemplary carrier composition contains equal parts of diphenylcarbonate and toluene.
摘要翻译： 通过使用载体中的磺酸酯猝灭剂淬灭产物中存在的碱性催化剂进行熔融缩聚反应，可获得高温高真空反应器中的性能。 如果由有效溶解猝灭剂并且具有比猝灭剂低的沸点的第一载体组分形成载体，以及可溶于第一载体组分并且具有比淬灭剂更高沸点的第二载体组分。 示例性的载体组合物包含相当部分的碳酸二苯酯和甲苯。
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公开(公告)号：US5760156A
公开(公告)日：1998-06-02
申请号：US764816
申请日：1996-12-12
申请人： Satoshi Inoki , Yoshio Motoyama , Hideto Matsuoka , Hajime Oyoshi , Michio Tanaka , Tomoaki Shimoda , Akio Kanezawa , Kazutoyo Uno
发明人： Satoshi Inoki , Yoshio Motoyama , Hideto Matsuoka , Hajime Oyoshi , Michio Tanaka , Tomoaki Shimoda , Akio Kanezawa , Kazutoyo Uno
CPC分类号： C08G64/307
摘要： A manufacturing method for polycarbonate comprising �I! a process for manufacturing diaryl carbonate from an aromatic hydroxy compound and an aromatic hydroxy compound, �II! a process for manufacturing polycarbonate by solution polymerization of the diaryl carbonate obtained in �II! and an aromatic dihydroxy compound in the presence of a catalyst comprising a nitrogen-containing basic compound, and �III! a process for separating and removing the nitrogen-containing compound from the aromatic hydroxy by-products in �II! and returning the resultant aromatic hydroxy compounds to process �I! effectively reuses aromatic hydroxy by-products (e.g., phenols) of polycarbonate manufacturing to manufacture diaryl carbonate, while suppressing the production of alkyl aromatic ethers and then uses this diaryl carbonate to manufacture polycarbonate with good productivity.
摘要翻译： 一种聚碳酸酯的制造方法，其包含：[I]由芳香族羟基化合物和芳香族羟基化合物制造碳酸二芳基酯的方法，[II]通过在[II]中得到的碳酸二芳基酯的溶液聚合制造聚碳酸酯的方法和芳香族二羟基 在含有含氮碱性化合物的催化剂存在下的化合物，和[III]从[II]中的芳族羟基副产物中分离除去含氮化合物并将所得芳族羟基化合物返回到方法 [I]有效地重复使用制造碳酸二甲酯的聚碳酸酯的芳族羟基副产物（例如酚），同时抑制烷基芳族醚的生产，然后使用该碳酸二芳基酯以高生产率制造聚碳酸酯。
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公开(公告)号：US5525701A
公开(公告)日：1996-06-11
申请号：US353857
申请日：1994-12-12
CPC分类号： B01J19/1862 , C08G64/205 , C08G64/307 , B01J2219/00168
摘要： Aromatic polycarbonates manufactured by polycondensation of a dihydric compound and a carbonic acid diester using at least two reactors in series have improved color and low impurities content when filtered before the final reactor and again before the final reactor outlet.
摘要翻译： 通过使用至少两个串联的两个反应器使二羟基化合物和碳酸二酯缩聚制备的芳族聚碳酸酯在最终反应器之前过滤并且再次在最终反应器出口之前具有改善的颜色和低的杂质含量。
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公开(公告)号：US06197918B1
公开(公告)日：2001-03-06
申请号：US09458277
申请日：1999-12-09
申请人： Kazutoyo Uno , Masahide Tanaka , Tomoaki Shimoda
发明人： Kazutoyo Uno , Masahide Tanaka , Tomoaki Shimoda
IPC分类号： C08G6400
CPC分类号： C08G64/307 , C07C68/06 , C07C69/96
摘要： The present invention provides a method, which makes it possible to manufacture aromatic carbonates from dialkyl carbonates and aromatic hydroxy compounds inexpensively and with good efficiency. The method uses a titanium catalyst in a particular amount relative to aromatic polyhydric hydroxy compound impurities in a crude aromatic hydroxy compound solution.
摘要翻译： 本发明提供一种能够以低成本，高效率从碳酸二烷基酯和芳香族羟基化合物制造芳香族碳酸酯的方法。 该方法在粗芳族羟基化合物溶液中使用相对于芳族多羟基化合物杂质的特定量的钛催化剂。
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