Equipment cleaning in the manufacture of polycarbonates
    2.
    发明授权
    Equipment cleaning in the manufacture of polycarbonates 有权
    聚碳酸酯制造中的设备清洗

    公开(公告)号:US07365149B2

    公开(公告)日:2008-04-29

    申请号:US11275110

    申请日:2005-12-12

    IPC分类号: C08G64/00

    摘要: A surface of a melt polymerization reactor system having residual reaction components of a melt polymerization reaction thereon can be cleaned by introducing a cleaning agent having a phenolic compound to the polymerization reactor system and into contact with the surface of the melt polymerization reactor system having the residual reaction components of a melt polymerization reaction thereon. The residual reaction components of the melt polymerization reaction include polycarbonate oligomers or polymers or their degradation products. Further, the cleaning agent is maintained in contact with the surface for a period of time and at a temperature sufficient to substantially remove the residual reaction components from the surface.

    摘要翻译: 在其上具有熔融聚合反应的残余反应组分的熔融聚合反应器体系的表面可以通过将具有酚类化合物的清洁剂引入聚合反应器系统并与具有残余物的熔融聚合反应器系统的表面接触来清洗 其上的熔融聚合反应的反应组分。 熔融聚合反应的残余反应组分包括聚碳酸酯低聚物或聚合物或其降解产物。 此外,清洁剂保持与表面接触一段时间,并且温度足以基本上从表面除去残留的反应组分。

    Method of producing high molecular weight polymer
    4.
    发明授权
    Method of producing high molecular weight polymer 失效
    生产高分子量聚合物的方法

    公开(公告)号:US07674872B2

    公开(公告)日:2010-03-09

    申请号:US12140694

    申请日:2008-06-17

    IPC分类号: C08G64/00 C08G63/02

    CPC分类号: C08G63/64 C08G64/305

    摘要: The present invention provides methods of producing high molecular weight polymer. A method of forming polycarbonate includes the step of combining in a reaction mixture a diaryl carbonate, a transesterification catalyst, an aliphatic dihydroxy compound, and a diacid compound in a reactor system. The temperature and pressure of the reactor system are adjusted to a first reactor setpoints and the reaction mixture is monitored to detect initiation of the exothermic oligomerization reaction. The reactor setpoint are adjusted to second reactor setpoints after detection of initiation of the exothermic oligomerization reaction. The reactor system is maintained at the second reactor setpoints to allow the reaction mixture to react to form an oligomer mixture. The oligomer mixture is then introduced to a polymerization reactor system operating under melt polymerization conditions sufficient to polymerize the oligomer mixture to a Mw of at least 9,000 g/mol (PC) and to remove the phenolic byproduct from the oligomer mixture to form polycarbonate.

    摘要翻译: 本发明提供高分子量聚合物的制造方法。 形成聚碳酸酯的方法包括在反应混合物中在反应器体系中将碳酸二芳基酯,酯交换催化剂,脂族二羟基化合物和二酸化合物混合的步骤。 将反应器系统的温度和压力调节至第一反应器设定点,并监测反应混合物以检测放热低聚反应的起始。 在检测到放热低聚反应的起始之后,将反应器设定点调整到第二反应器设定点。 将反应器系统保持在第二反应器设定点以允许反应混合物反应以形成低聚物混合物。 然后将低聚物混合物引入到在熔融聚合条件下操作的聚合反应器系统,该条件足以将低聚物混合物聚合至至少9,000g / mol(PC)的Mw,并从低聚物混合物中除去酚类副产物以形成聚碳酸酯。

    Method of Producing High Molecular Weight Polymer
    5.
    发明申请
    Method of Producing High Molecular Weight Polymer 失效
    生产高分子量聚合物的方法

    公开(公告)号:US20090312503A1

    公开(公告)日:2009-12-17

    申请号:US12140694

    申请日:2008-06-17

    IPC分类号: C08G85/00

    CPC分类号: C08G63/64 C08G64/305

    摘要: The present invention provides methods of producing high molecular weight polymer. A method of forming polycarbonate includes the step of combining in a reaction mixture a diaryl carbonate, a transesterification catalyst, an aliphatic dihydroxy compound, and a diacid compound in a reactor system. The temperature and pressure of the reactor system are adjusted to a first reactor setpoints and the reaction mixture is monitored to detect initiation of the exothermic oligomerization reaction. The reactor setpoint are adjusted to second reactor setpoints after detection of initiation of the exothermic oligomerization reaction. The reactor system is maintained at the second reactor setpoints to allow the reaction mixture to react to form an oligomer mixture. The oligomer mixture is then introduced to a polymerization reactor system operating under melt polymerization conditions sufficient to polymerize the oligomer mixture to a Mw of at least 9,000 g/mol (PC) and to remove the phenolic byproduct from the oligomer mixture to form polycarbonate.

    摘要翻译: 本发明提供高分子量聚合物的制造方法。 形成聚碳酸酯的方法包括在反应混合物中在反应器体系中将碳酸二芳基酯,酯交换催化剂,脂族二羟基化合物和二酸化合物混合的步骤。 将反应器系统的温度和压力调节至第一反应器设定点,并监测反应混合物以检测放热低聚反应的起始。 在检测到放热低聚反应的起始之后,将反应器设定点调整到第二反应器设定点。 将反应器系统保持在第二反应器设定点以允许反应混合物反应以形成低聚物混合物。 然后将低聚物混合物引入到在熔融聚合条件下操作的聚合反应器系统,该条件足以将低聚物混合物聚合至至少9,000g / mol(PC)的Mw,并从低聚物混合物中除去酚类副产物以形成聚碳酸酯。

    Monomer Solution for Producing Polycarbonate
    6.
    发明申请
    Monomer Solution for Producing Polycarbonate 失效
    用于生产聚碳酸酯的单体溶液

    公开(公告)号:US20090088540A1

    公开(公告)日:2009-04-02

    申请号:US11863659

    申请日:2007-09-28

    IPC分类号: C08F2/00

    摘要: A non-reactive monomer mixture is formed from a dihydroxy component having one or more dihydroxy compounds dissolved in a melted diaryl carbonate. The dihydroxy component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The dihydroxy compounds of the dihydroxy component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the saturation point of the monomer mixture and the highest melting temperature of the individual dihydroxy compounds. The non-reactive monomer mixture can be stored and transported and then polymerized to form polycarbonate upon addition of a catalyst.

    摘要翻译: 非反应性单体混合物由具有溶解在熔融的碳酸二芳基酯中的一种或多种二羟基化合物的二羟基组分形成。 二羟基组分具有少于600ppb的碱金属,酸稳定剂,或两者少于600ppb的碱金属和酸稳定剂。 二羟基成分和碳酸二芳基酯的二羟基化合物的摩尔比为0.9-1.1。 单体混合物处于单体混合物的饱和点和各个二羟基化合物的最高熔融温度之间的温度。 非反应性单体混合物可以储存和运输,然后在加入催化剂时聚合形成聚碳酸酯。

    MONOMER SOLUTION FOR PRODUCING POLYCARBONATE
    8.
    发明申请
    MONOMER SOLUTION FOR PRODUCING POLYCARBONATE 失效
    用于生产聚碳酸酯的单体解决方案

    公开(公告)号:US20090247726A1

    公开(公告)日:2009-10-01

    申请号:US12234243

    申请日:2008-09-19

    IPC分类号: C08G67/00

    摘要: A non-reactive monomer mixture contains a monomer component and a diaryl carbonate dispersed in the mixture. The monomer component includes one or more monomer compounds having a melting point below the melting point of the diaryl carbonate. The monomer component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The monomer compounds of the monomer component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the melting temperature of the lowest melting monomer compound and less than 5° C. above the melting point of the diaryl carbonate.

    摘要翻译: 非反应性单体混合物含有分散在混合物中的单体组分和碳酸二芳基酯。 单体组分包括一种或多种熔点低于碳酸二芳基酯的熔点的单体化合物。 单体组分具有小于600ppb的碱金属,酸稳定剂,或低于600ppb的碱金属和酸稳定剂。 单体组分和碳酸二芳基酯的单体化合物以0.9至1.1的摩尔比存在。 单体混合物处于最低熔点单体化合物的熔融温度和低于碳酸二芳基酯的熔点以上5℃以上的温度。

    Aliphatic polycarbonates, methods of making, and articles formed therefrom
    9.
    发明授权
    Aliphatic polycarbonates, methods of making, and articles formed therefrom 有权
    脂肪族聚碳酸酯,制造方法和由其形成的制品

    公开(公告)号:US07671164B2

    公开(公告)日:2010-03-02

    申请号:US12124583

    申请日:2008-05-21

    IPC分类号: C08G63/00 C08G63/02

    CPC分类号: C08G64/305 C08G64/0208

    摘要: A method of making a polycarbonate is described. The method comprises melt reacting an ester-substituted diaryl carbonate and a multifunctional compound of the formula: in the presence of catalyst to form an oligomer comprising less than 2,000 ppm of an ester-linked terminal group, and melt polymerizing the oligomer to form a polycarbonate. Use of specific reaction conditions produces a polycarbonate having an Mw of greater than or equal to 25,000 g/mol as determined by gel-permeation chromatography relative to polystyrene standards. Polycarbonates comprising units derived from the multifunctional compound, including homopolycarbonates, aliphatic copolycarbonates further comprising units derived from an aromatic dihydroxy compound, and aliphatic polycarbonate-polyesters, are also disclosed, as are a thermoplastic composition and an article including the disclosed polycarbonates.

    摘要翻译: 描述制造聚碳酸酯的方法。 该方法包括使酯取代的碳酸二芳酯和下式的多官能化合物熔融反应:在催化剂存在下,形成包含小于2,000ppm的酯连接的末端基团的低聚物,并将该低聚物熔融聚合以形成聚碳酸酯 。 使用特定的反应条件产生通过凝胶渗透色谱法相对于聚苯乙烯标准测定的Mw大于或等于25,000g / mol的聚碳酸酯。 还公开了包含衍生自多官能化合物的单元的聚碳酸酯,包括均聚碳酸酯,还包含衍生自芳族二羟基化合物的单元的脂族共聚碳酸酯和脂族聚碳酸酯聚酯,以及包含所公开的聚碳酸酯的热塑性组合物和制品。

    Monomer solution for producing polycarbonate
    10.
    发明授权
    Monomer solution for producing polycarbonate 失效
    用于生产聚碳酸酯的单体溶液

    公开(公告)号:US07615605B2

    公开(公告)日:2009-11-10

    申请号:US12234243

    申请日:2008-09-19

    IPC分类号: C08G64/00 C08G63/02

    摘要: A non-reactive monomer mixture contains a monomer component and a diaryl carbonate dispersed in the mixture. The monomer component includes one or more monomer compounds having a melting point below the melting point of the diaryl carbonate. The monomer component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The monomer compounds of the monomer component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the melting temperature of the lowest melting monomer compound and less than 5° C. above the melting point of the diaryl carbonate.

    摘要翻译: 非反应性单体混合物含有分散在混合物中的单体组分和碳酸二芳基酯。 单体组分包括一种或多种熔点低于碳酸二芳基酯的熔点的单体化合物。 单体组分具有小于600ppb的碱金属,酸稳定剂,或低于600ppb的碱金属和酸稳定剂。 单体组分和碳酸二芳基酯的单体化合物以0.9至1.1的摩尔比存在。 单体混合物处于最低熔点单体化合物的熔融温度和低于碳酸二芳基酯的熔点以上5℃以上的温度。