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    Polycarbonate with Reduced Color
    4.
    发明申请
    Polycarbonate with Reduced Color 有权
    聚碳酸酯减少颜色

    公开(公告)号：US20080004379A1

    公开(公告)日：2008-01-03

    申请号：US11688551

    申请日：2007-03-20

    申请人： Sjef Berndsen ,  Hans Peter Brack ,  Bernd Jansen ,  Dennis Karlik ,  Edward Kung ,  Daniel Lowery ,  Patrick Joseph McCloskey

    发明人： Sjef Berndsen ,  Hans Peter Brack ,  Bernd Jansen ,  Dennis Karlik ,  Edward Kung ,  Daniel Lowery ,  Patrick Joseph McCloskey

    IPC分类号： C08G64/08

    CPC分类号： C08K5/49 ,  C08L69/00

    摘要： A method of making polycarbonate includes the steps of forming polycarbonate by a melt transesterification method using an activated diaryl carbonate, and compounding the polycarbonate with a phosphorus-containing compound that has an abstractable proton or hydrolyzable group. The phosphorus-containing compound is compounded with the polycarbonate in an amount sufficient to result in an improvement in the color properties of the polycarbonate as compared to pellets formed from the same polycarbonate without addition of the phosphorus-containing compound.

    摘要翻译： 制备聚碳酸酯的方法包括通过使用活化的碳酸二芳基酯的熔体酯交换法形成聚碳酸酯的步骤，并将聚碳酸酯与具有可抽提的质子或可水解基团的含磷化合物混合。 含磷化合物与聚碳酸酯混合，其量足以导致与不加入含磷化合物相同的聚碳酸酯形成的粒料相比，聚碳酸酯的着色性能得到改善。

    Method of Preparing Polycarbonate
    5.
    发明申请
    Method of Preparing Polycarbonate 有权
    聚碳酸酯的制备方法

    公开(公告)号：US20080004418A1

    公开(公告)日：2008-01-03

    申请号：US11427885

    申请日：2006-06-30

    申请人： Bernd Jansen ,  Jan Henk Kamps ,  Edward Kung ,  Patrick Joseph McCloskey ,  Paul Michael Smigelski

    发明人： Bernd Jansen ,  Jan Henk Kamps ,  Edward Kung ,  Patrick Joseph McCloskey ,  Paul Michael Smigelski

    IPC分类号： C08G64/00

    CPC分类号： C08G64/14 ,  C08G64/307

    摘要： Polycarbonates incorporating terminal carbonate groups derived from ester-substituted activated carbonates in a transesterification process have unfavorable properties with respect to color, hydrolytic stability and thermal stability, particularly when the polycarbonate containing such end groups is molded. The number of activated carbonate end groups formed during the melt transesterification formation of polycarbonate can be reduced by reacting a dihydroxy compound with an activated diaryl carbonate in the presence of an esterification catalyst to produce a polycarbonate, in the presence of a monohydroxy chainstopper such as para-cumyl phenol in an amount that results in 35 to 65 mol % of the end groups being derived from the monohydroxy chainstopper. Suitably, the reactants are provided such that the molar ratio of activated diaryl carbonate to the total of dihydroxy compound plus ½ the chainstopping reagent that is less than 1.

    摘要翻译： 在酯交换方法中，衍生自酯取代的活性碳酸酯的末端碳酸酯基团的聚碳酸酯在颜色，水解稳定性和热稳定性方面具有不利的性质，特别是当含有这样的端基的聚碳酸酯被成型时。 在聚碳酸酯的熔融酯交换形成期间形成的活化碳酸酯端基的数量可以通过在酯化催化剂的存在下使二羟基化合物与活化的碳酸二芳基酯反应来制备聚碳酸酯，在单羟基链断裂剂例如对 - 辛基苯酚，其量导致35-65mol％端基衍生自单羟基链断裂剂。 适当地，提供反应物使得活化的碳酸二芳基酯与二羟基化合物的总和加上1/2的阻滞剂的摩尔比小于1。

    Method of preparing polycarbonate
    6.
    发明授权
    Method of preparing polycarbonate 有权
    聚碳酸酯的制备方法

    公开(公告)号：US07498400B2

    公开(公告)日：2009-03-03

    申请号：US11427885

    申请日：2006-06-30

    申请人： Bernd Jansen ,  Jan Henk Kamps ,  Edward Kung ,  Patrick Joseph McCloskey ,  Paul Michael Smigelski, Jr.

    发明人： Bernd Jansen ,  Jan Henk Kamps ,  Edward Kung ,  Patrick Joseph McCloskey ,  Paul Michael Smigelski, Jr.

    IPC分类号： C08G64/00 ,  C08G63/02

    CPC分类号： C08G64/14 ,  C08G64/307

    摘要： Polycarbonates incorporating terminal carbonate groups derived from ester-substituted activated carbonates in a transesterification process have unfavorable properties with respect to color, hydrolytic stability and thermal stability, particularly when the polycarbonate containing such end groups is molded. The number of activated carbonate end groups formed during the melt transesterification formation of polycarbonate can be reduced by reacting a dihydroxy compound with an activated diaryl carbonate in the presence of an esterification catalyst to produce a polycarbonate, in the presence of a monohydroxy chainstopper such as para-cumyl phenol in an amount that results in 35 to 65 mol % of the end groups being derived from the monohydroxy chainstopper. Suitably, the reactants are provided such that the molar ratio of activated diaryl carbonate to the total of dihydroxy compound plus ½ the chainstopping reagent that is less than 1.

    摘要翻译： 在酯交换方法中，衍生自酯取代的活性碳酸酯的末端碳酸酯基团的聚碳酸酯在颜色，水解稳定性和热稳定性方面具有不利的性质，特别是当含有这样的端基的聚碳酸酯被成型时。 在聚碳酸酯的熔融酯交换形成期间形成的活化碳酸酯端基的数量可以通过在酯化催化剂的存在下使二羟基化合物与活化的碳酸二芳基酯反应来制备聚碳酸酯，在单羟基链断裂剂例如对 - 辛基苯酚，其量导致35-65mol％端基衍生自单羟基链断裂剂。 适当地，提供反应物使得活化的碳酸二芳基酯与二羟基化合物的总和加上1/2的阻滞剂的摩尔比小于1。

    Polycarbonates and method of preparing same
    7.
    发明授权
    Polycarbonates and method of preparing same 有权
    聚碳酸酯及其制备方法

    公开(公告)号：US07482423B2

    公开(公告)日：2009-01-27

    申请号：US11427861

    申请日：2006-06-30

    申请人： Bernd Jansen ,  Jan Henk Kamps ,  Edward Kung ,  Patrick Joseph McCloskey ,  Paul Michael Smigelski, Jr.

    发明人： Bernd Jansen ,  Jan Henk Kamps ,  Edward Kung ,  Patrick Joseph McCloskey ,  Paul Michael Smigelski, Jr.

    IPC分类号： C08G64/00 ,  C08G63/02

    CPC分类号： C08G64/307 ,  C08G64/04

    摘要： Polycarbonates incorporating terminal carbonate groups derived from ester-substituted activated carbonates, for example terminal methyl salicyl carbonate (TMSC) derived from the use of BMSC as the activated carbonate in a transesterification process, have unfavorable properties with respect to color, hydrolytic stability and thermal stability, particularly when the polycarbonate containing such end groups is molded. The number of activated carbonate end groups formed during the melt transesterification formation of polycarbonate can be reduced, however, without sacrificing the benefits of using an activated diaryl carbonate, and without requiring a separate reaction or additional additives by reacting a dihydroxy compound with an activated diaryl carbonate in the presence of an esterification catalyst to produce a polycarbonate, wherein the molar ratio of activated diaryl carbonate to dihydroxy compound is less than 1 when expressed to at least three decimal places, for example 0.996 or less.

    摘要翻译： 由酯取代的活性碳酸酯衍生的末端碳酸酯基团的聚碳酸酯，例如在酯交换法中使用BMSC作为活性碳酸酯的末端甲基水杨酸碳酸酯（TMSC）在颜色，水解稳定性和热稳定性方面具有不利的性质 特别是当含有这种端基的聚碳酸酯被模制时。 然而，在聚碳酸酯的熔融酯交换形成期间形成的活化碳酸酯端基的数量可以降低，但不会牺牲使用活性碳酸二芳基酯的优点，并且不需要单独的反应或另外的添加剂，通过使二羟基化合物与活化的二芳基 在酯化催化剂存在下制备碳酸酯以制备聚碳酸酯，其中活化的碳酸二芳酯与二羟基化合物的摩尔比当表示至少三位小数，例如0.996或更小时小于1。

    Polycarbonates and method of preparing same
    8.
    发明申请
    Polycarbonates and method of preparing same 有权
    聚碳酸酯及其制备方法

    公开(公告)号：US20080004417A1

    公开(公告)日：2008-01-03

    申请号：US11427861

    申请日：2006-06-30

    申请人： Bernd Jansen ,  Jan Henk Kamps ,  Edward Kung ,  Patrick Joseph McCloskey ,  Paul Michael Smigelski

    发明人： Bernd Jansen ,  Jan Henk Kamps ,  Edward Kung ,  Patrick Joseph McCloskey ,  Paul Michael Smigelski

    IPC分类号： C08G64/00

    CPC分类号： C08G64/307 ,  C08G64/04

    摘要： Polycarbonates incorporating terminal carbonate groups derived from ester-substituted activated carbonates, for example terminal methyl salicyl carbonate (TMSC) derived from the use of BMSC as the activated carbonate in a transesterification process, have unfavorable properties with respect to color, hydrolytic stability and thermal stability, particularly when the polycarbonate containing such end groups is molded. The number of activated carbonate end groups formed during the melt transesterification formation of polycarbonate can be reduced, however, without sacrificing the benefits of using an activated diaryl carbonate, and without requiring a separate reaction or additional additives by reacting a dihydroxy compound with an activated diaryl carbonate in the presence of an esterification catalyst to produce a polycarbonate, wherein the molar ratio of activated diaryl carbonate to dihydroxy compound is less than 1 when expressed to at least three decimal places, for example 0.996 or less.

    摘要翻译： 由酯取代的活性碳酸酯衍生的末端碳酸酯基团的聚碳酸酯，例如在酯交换法中使用BMSC作为活性碳酸酯的末端甲基水杨酸碳酸酯（TMSC）在颜色，水解稳定性和热稳定性方面具有不利的性质 特别是当含有这种端基的聚碳酸酯被模制时。 然而，在聚碳酸酯的熔融酯交换形成期间形成的活化碳酸酯端基的数量可以降低，但不会牺牲使用活性碳酸二芳基酯的优点，并且不需要单独的反应或另外的添加剂，通过使二羟基化合物与活化的二芳基 在酯化催化剂存在下制备碳酸酯以制备聚碳酸酯，其中活化的碳酸二芳酯与二羟基化合物的摩尔比当表示至少三位小数，例如0.996或更小时小于1。