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    High molecular weight aromatic polycarbonate resin manufacturing method
    3.
    发明授权
    High molecular weight aromatic polycarbonate resin manufacturing method 有权

    公开(公告)号：US10894860B2

    公开(公告)日：2021-01-19

    申请号：US16088952

    申请日：2017-03-24

    申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

    发明人： Yoshinori Isahaya ,  Atsushi Hirashima ,  Hidefumi Harada ,  Maki Ito ,  Jun-ya Hayakawa ,  Takehiko Isobe ,  Yousuke Shinkai ,  Keisuke Shimokawa

    IPC分类号： C08G64/06 ,  C08G64/30 ,  C08G64/16

    摘要： A high molecular weight aromatic polycarbonate resin manufacturing method that can achieve good quality and sufficiently high molecular weight includes: a step in which a dialcohol compound expressed by general formula (1) and a catalyst are mixed to obtain a catalyst composition; a step in which the obtained catalyst composition is transferred to a prepolymer mixing tank via a transfer pipe; a step in which the transferred catalyst composition and an aromatic polycarbonate prepolymer are mixed in the prepolymer mixing tank, under a pressure that is greater than or equal to the vapor pressure of the dialcohol compound at the temperature of the prepolymer mixing tank and is less than or equal to 5 MPa, to obtain a prepolymer mixture; and a high molecular weight achievement step in which the obtained prepolymer mixture is heat-treated under reduced pressure conditions to obtain a high molecular weight aromatic polycarbonate resin.

    Method for continuous production of high molecular weight polycarbonate resin
    4.
    发明授权
    Method for continuous production of high molecular weight polycarbonate resin 有权
    连续生产高分子量聚碳酸酯树脂的方法

    公开(公告)号：US09243106B2

    公开(公告)日：2016-01-26

    申请号：US14400640

    申请日：2013-05-14

    申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

    发明人： Yoshinori Isahaya ,  Atsushi Hirashima ,  Hidefumi Harada ,  Maki Ito ,  Jun-ya Hayakawa ,  Takehiko Isobe ,  Taichi Tokutake ,  Yousuke Shinkai

    IPC分类号： C08G64/00 ,  C08G64/30 ,  C08G64/16 ,  C08G64/06 ,  C08G63/02

    CPC分类号： C08G64/307 ,  C08G64/06 ,  C08G64/1608 ,  C08G64/205 ,  C08G64/30 ,  C08G64/305

    摘要： A high molecular weight polycarbonate resin is continuously produced by subjecting an aromatic polycarbonate prepolymer and an aliphatic diol compound to a linking and highly polymerizing reaction. Even an aliphatic diol compound having a comparatively low boiling point can be allowed to efficiently contribute to the linking and highly polymerizing reaction. An aromatic polycarbonate prepolymer is produced by a polycondensation reaction between an aromatic dihydroxy compound and a diester carbonate, adding an aliphatic diol compound having an aliphatic group bonding to a terminal hydroxyl group to obtain a prepolymer mixture, and subjecting the resulting prepolymer mixture to a linking and highly polymerizing reaction under reduced pressure. The aliphatic diol compound is added at a pressure exceeding 200 torr, and the prepolymer mixture is subjected to a linking and highly polymerizing reaction before the terminal hydroxyl group concentration of the aromatic polycarbonate prepolymer in the prepolymer mixture reaches 2000 ppm.

    摘要翻译： 通过使芳族聚碳酸酯预聚物和脂族二醇化合物进行连接和高度聚合反应来连续制备高分子量聚碳酸酯树脂。 甚至可以使具有较低沸点的脂族二醇化合物有效地促进连接和高度聚合反应。 通过芳香族二羟基化合物与碳酸二酯之间的缩聚反应生成芳香族聚碳酸酯预聚物，加入具有与末端羟基键合的脂肪族二醇化合物，得到预聚物混合物，将所得预聚物混合物进行连接 并在减压下进行高度聚合反应。 在超过200托的压力下加入脂族二醇化合物，预聚物混合物在预聚物混合物中的芳族聚碳酸酯预聚物的末端羟基浓度达到2000ppm之前进行连接和高度聚合反应。

    PROCESS FOR PREPARING HIGHLY POLYMERIZED AROMATIC POLYCARBONATE RESIN
    6.
    发明申请
    PROCESS FOR PREPARING HIGHLY POLYMERIZED AROMATIC POLYCARBONATE RESIN 有权
    制备高分子量芳族聚碳酸酯树脂的方法

    公开(公告)号：US20150267006A1

    公开(公告)日：2015-09-24

    申请号：US14442911

    申请日：2013-11-15

    申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

    发明人： Yoshinori Isahaya ,  Atsushi Hirashima ,  Hidefumi Harada ,  Maki Ito ,  Jun-ya Hayakawa ,  Takehiko Isobe ,  Taichi Tokutake ,  Hongyu Liu ,  Yousuke Shinkai

    IPC分类号： C08J3/00

    CPC分类号： C08J3/00 ,  C08G64/06 ,  C08G64/307 ,  C08G64/42 ,  C08J2369/00 ,  Y02P20/582

    摘要： The present invention is to provide a process for preparing a highly polymerized aromatic polycarbonate resin, which comprises the steps of a highly polymerizing step for reacting an aromatic polycarbonate prepolymer and an aliphatic diol compound in the presence of a transesterification catalyst to obtain a highly polymerized aromatic polycarbonate resin, a cyclic carbonate removal step for removing at least part of the cyclic carbonate by-produced in the above highly polymerizing step out of the reaction system, and a recycle step of hydrolyzing the cyclic carbonate removed in the cyclic carbonate removal step to obtain an aliphatic diol compound and using the obtained aliphatic diol compound as at least a part of the aliphatic diol compound to be used in the highly polymerizing step.

    摘要翻译： 本发明提供一种制备高度聚合的芳族聚碳酸酯树脂的方法，其包括在酯交换催化剂存在下使芳族聚碳酸酯预聚物和脂族二醇化合物反应的高聚合步骤以获得高度聚合的芳族化合物 聚碳酸酯树脂，环状碳酸酯除去步骤，用于从上述高聚合步骤中除去至少部分在上述高度聚合步骤中的环状碳酸酯脱除反应体系;以及循环步骤，水解环状碳酸酯去除步骤中除去的环状碳酸酯，得到 脂肪族二醇化合物，并且使用所获得的脂族二醇化合物作为用于高度聚合步骤中的脂族二醇化合物的至少一部分。

    METHOD FOR CONTINUOUS PRODUCTION OF HIGH-MOLECULAR-WEIGHT POLYCARBONATE RESIN
    7.
    发明申请
    METHOD FOR CONTINUOUS PRODUCTION OF HIGH-MOLECULAR-WEIGHT POLYCARBONATE RESIN 审中-公开
    连续生产高分子量聚碳酸酯树脂的方法

    公开(公告)号：US20140371404A1

    公开(公告)日：2014-12-18

    申请号：US14368043

    申请日：2012-12-27

    申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

    发明人： Yoshinori Isahaya ,  Atsushi Hirashima ,  Hidefumi Harada ,  Maki Ito ,  Jun-ya Hayakawa ,  Takehiko Isobe ,  Taichi Tokutake ,  Yousuke Shinkai

    IPC分类号： C08G64/30

    CPC分类号： C08G64/307 ,  B01J19/0066 ,  B01J19/1856 ,  B01J19/1862 ,  B01J19/20 ,  B01J2219/00094 ,  B01J2219/00779

    摘要： The present invention provides an improved method for continuously producing a high-molecular-weight polycarbonate resin by carrying out a linking and highly-polymerizing reaction of an aromatic polycarbonate prepolymer with an aliphatic diol compound wherein the retention time of the reaction mixture in the linking and highly-polymerizing reactor is shortened to achieve excellent performance.The process comprises a process (A) for producing an aromatic polycarbonate prepolymer by polycondensation reaction of an aromatic dihydroxy compound with diester carbonate and a process (B) for conducting linking and highly-polymerizing reaction of the aromatic polycarbonate prepolymer with an aliphatic diol compound in the linking and highly-polymerizing reactor, wherein the aromatic polycarbonate prepolymer produced by the process (A) is fed continuously to the linking and highly-polymerizing reactor, while the aliphatic diol compound is fed continuously thereto under reduced pressure of 10 torr or less to carry out the reaction.

    摘要翻译： 本发明提供了一种通过进行芳族聚碳酸酯预聚物与脂族二醇化合物的连接和高度聚合反应连续生产高分子量聚碳酸酯树脂的改进方法，其中反应混合物在连接和 高聚合反应器缩短以达到优异的性能。 该方法包括通过芳族二羟基化合物与二酯碳酸酯的缩聚反应制备芳族聚碳酸酯预聚物的方法（A）和用于使芳族聚碳酸酯预聚物与脂族二醇化合物进行连接和高度聚合反应的方法（B） 连接高分子化反应器，其中通过方法（A）制备的芳族聚碳酸酯预聚物连续进料到连接和高度聚合的反应器中，同时在10托或更低的压力下将脂族二醇化合物连续地进料至 进行反应。

    Method for producing aromatic nitrile compound and method for producing carbonic acid ester
    8.
    发明授权
    Method for producing aromatic nitrile compound and method for producing carbonic acid ester 有权

    公开(公告)号：US11161816B2

    公开(公告)日：2021-11-02

    申请号：US17006368

    申请日：2020-08-28

    申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

    发明人： Hidefumi Harada ,  Yousuke Shinkai ,  Hongyu Liu ,  Takehiko Isobe ,  Yoshinori Isahaya

    IPC分类号： C07D213/84 ,  B01J23/04 ,  B01J37/02 ,  B01J37/08 ,  C07D213/82

    摘要： Provided is a method for regenerating an aromatic amide compound into a corresponding aromatic nitrile compound, the method realizing a dehydration reaction of providing a target compound selectively at a high yield, with generation of a by-product being suppressed. Also provided is a method for producing an aromatic nitrile compound that decreases the number of steps of the dehydration reaction and significantly improves the reaction speed even at a pressure close to normal pressure. In addition, the above-described production method is applied to a carbonate ester production method to provide a method for producing a carbonate ester efficiently. The above-described methods are realized by a method for producing an aromatic nitrile compound including a dehydration reaction of dehydrating an aromatic amide compound, in which the dehydration reaction uses, as a solvent, any of 1,2-dimethoxybenzene, 1,3-dimethoxybenzene and 1,3,5-trimethoxybenzene.

    Manufacturing method for high molecular weight aromatic polycarbonate resin
    9.
    发明授权
    Manufacturing method for high molecular weight aromatic polycarbonate resin 有权

    公开(公告)号：US10927216B2

    公开(公告)日：2021-02-23

    申请号：US16088959

    申请日：2017-03-24

    申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

    发明人： Yoshinori Isahaya ,  Atsushi Hirashima ,  Hidefumi Harada ,  Maki Ito ,  Jun-ya Hayakawa ,  Takehiko Isobe ,  Yousuke Shinkai ,  Keisuke Shimokawa

    IPC分类号： C08G64/30 ,  C08G64/16 ,  C08G64/06

    摘要： Provided is a high molecular weight aromatic polycarbonate resin manufacturing method that suppresses the occurrence of heterogeneous structures and can achieve a sufficiently high molecular weight. A high molecular weight aromatic polycarbonate resin manufacturing method including: a step in which a dialcohol compound expressed by general formula (1) and a catalyst are mixed to obtain a catalyst composition; a step in which the obtained catalyst composition is transferred to a prepolymer mixing tank via a transfer pipe, with a transfer period of 10 hours or less; a step in which the transferred catalyst composition and an aromatic polycarbonate prepolymer are mixed in the prepolymer mixing tank to obtain a prepolymer mixture; and a high molecular weight achievement step in which the obtained prepolymer mixture is heat-treated under reduced pressure conditions to obtain a high molecular weight aromatic polycarbonate resin.