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    Method for preparing a polycarbonate oligomer mixture at low temperature for manufacturing polycarbonate
    1.
    发明授权
    Method for preparing a polycarbonate oligomer mixture at low temperature for manufacturing polycarbonate 失效
    低温制备聚碳酸酯低聚物混合物制造聚碳酸酯的方法

    公开(公告)号：US07041775B2

    公开(公告)日：2006-05-09

    申请号：US10830163

    申请日：2004-04-21

    申请人： Maria Tomas Martinez ,  Alberto Nisoli ,  Alfredo Lopez Carretero ,  Ganesh Kailasam ,  David Domingo ,  Patrick Joseph McCloskey

    发明人： Maria Tomas Martinez ,  Alberto Nisoli ,  Alfredo Lopez Carretero ,  Ganesh Kailasam ,  David Domingo ,  Patrick Joseph McCloskey

    IPC分类号： C08G64/00

    CPC分类号： C08G64/307 ,  B01J19/18 ,  B01J19/1806 ,  B01J19/1887 ,  B01J19/20 ,  B01J2219/00031 ,  B01J2219/0004 ,  B01J2219/00083 ,  B01J2219/00094 ,  B01J2219/00166 ,  B01J2219/00184 ,  B01J2219/00186 ,  C08G64/205

    摘要： The present invention provides a method of making polycarbonate oligomers, polycarbonate, molded articles formed from polycarbonate, and an apparatus for making polycarbonate. An oligomer mixture is first prepared by the steps of providing an equilibration system comprising a vessel, a reaction mixture contained within the vessel, and means for mixing the reaction mixture contained within the vessel wherein the reaction mixture comprises a melted activated diaryl carbonate composition, and a catalyst present in sufficient amount to initiate an oligomerization reaction between a dihydroxy composition and the activated diaryl carbonate to form polycarbonate oligomers. The method further includes the steps of introducing a melted dihydroxy composition to the reaction mixture contained within the equilibration system, maintaining the reaction mixture contained within the vessel at an oligomerization temperature, said oligomerization temperature being below the melting point the dihydroxy composition, and sufficiently high to allow formation of a homogeneous melt within the vessel, and continuously drawing off a product stream from the equilibration system, wherein the product stream comprises a polycarbonate oligomer mixture. This polycarbonate oligomer mixture is suitably used as a feed stock for producing polycarbonate in a polycondensation system. The polycarbonate is suitably used for the preparation of molded articles.

    摘要翻译： 本发明提供一种制备聚碳酸酯低聚物，聚碳酸酯，由聚碳酸酯形成的模制品的方法和用于制备聚碳酸酯的装置。 首先通过以下步骤制备低聚物混合物，所述步骤包括提供包含容器，容器内的反应混合物的平衡系统和用于混合包含在容器内的反应混合物的装置，其中反应混合物包含熔融的活化碳酸二芳基酯组合物和 存在足够量的催化剂以引发二羟基组合物和活化的碳酸二芳基酯之间的低聚反应以形成聚碳酸酯低聚物。 该方法还包括以下步骤：将熔融的二羟基组合物引入平衡系统中包含的反应混合物中，将容器内的反应混合物保持在低聚温度，所述低聚温度低于二羟基组合物的熔点，并且足够高 以允许在容器内形成均匀的熔体，并且从平衡系统连续地抽出产物流，其中产物流包含聚碳酸酯低聚物混合物。 该聚碳酸酯低聚物混合物适合用作在缩聚体系中制造聚碳酸酯的原料。 聚碳酸酯适合用于制备模塑制品。

    Method for preparing a polycarbonate oligomer mixture at low temperature for manufacturing polycarbonate
    2.
    发明申请
    Method for preparing a polycarbonate oligomer mixture at low temperature for manufacturing polycarbonate 失效
    低温制备聚碳酸酯低聚物混合物制造聚碳酸酯的方法

    公开(公告)号：US20050234211A1

    公开(公告)日：2005-10-20

    申请号：US10830163

    申请日：2004-04-21

    申请人： Maria Martinez ,  Alberto Nisoli ,  Alfredo Carretero ,  Ganesh Kailasam ,  David Domingo ,  Patrick McCloskey

    发明人： Maria Martinez ,  Alberto Nisoli ,  Alfredo Carretero ,  Ganesh Kailasam ,  David Domingo ,  Patrick McCloskey

    IPC分类号： B01J19/18 ,  B01J19/20 ,  C08G64/20 ,  C08G64/30 ,  C08G64/00

    CPC分类号： C08G64/307 ,  B01J19/18 ,  B01J19/1806 ,  B01J19/1887 ,  B01J19/20 ,  B01J2219/00031 ,  B01J2219/0004 ,  B01J2219/00083 ,  B01J2219/00094 ,  B01J2219/00166 ,  B01J2219/00184 ,  B01J2219/00186 ,  C08G64/205

    摘要： The present invention provides a method of making polycarbonate oligomers, polycarbonate, molded articles formed from polycarbonate, and an apparatus for making polycarbonate. An oligomer mixture is first prepared by the steps of providing an equilibration system comprising a vessel, a reaction mixture contained within the vessel, and means for mixing the reaction mixture contained within the vessel wherein the reaction mixture comprises a melted activated diaryl carbonate composition, and a catalyst present in sufficient amount to initiate an oligomerization reaction between a dihydroxy composition and the activated diaryl carbonate to form polycarbonate oligomers. The method further includes the steps of introducing a melted dihydroxy composition to the reaction mixture contained within the equilibration system, maintaining the reaction mixture contained within the vessel at an oligomerization temperature, said oligomerization temperature being below the melting point the dihydroxy composition, and sufficiently high to allow formation of a homogeneous melt within the vessel, and continuously drawing off a product stream from the equilibration system, wherein the product stream comprises a polycarbonate oligomer mixture. This polycarbonate oligomer mixture is suitably used as a feed stock for producing polycarbonate in a polycondensation system. The polycarbonate is suitably used for the preparation of molded articles.

    摘要翻译： 本发明提供一种制备聚碳酸酯低聚物，聚碳酸酯，由聚碳酸酯形成的模制品的方法和用于制备聚碳酸酯的装置。 首先通过以下步骤制备低聚物混合物，所述步骤包括提供包含容器，容器内的反应混合物的平衡系统和用于混合包含在容器内的反应混合物的装置，其中反应混合物包含熔融的活化碳酸二芳基酯组合物和 存在足够量的催化剂以引发二羟基组合物和活化的碳酸二芳基酯之间的低聚反应以形成聚碳酸酯低聚物。 该方法还包括以下步骤：将熔融的二羟基组合物引入平衡系统中包含的反应混合物中，将容器内的反应混合物保持在低聚温度，所述低聚温度低于二羟基组合物的熔点，并且足够高 以允许在容器内形成均匀的熔体，并且从平衡系统连续地抽出产物流，其中产物流包含聚碳酸酯低聚物混合物。 该聚碳酸酯低聚物混合物适合用作在缩聚体系中制造聚碳酸酯的原料。 聚碳酸酯适合用于制备模塑制品。

    Process to make polycarbonate from bismethylsalicylcarbonate (BMSC)
    5.
    发明授权
    Process to make polycarbonate from bismethylsalicylcarbonate (BMSC) 有权

    公开(公告)号：US07132498B2

    公开(公告)日：2006-11-07

    申请号：US10951574

    申请日：2004-09-27

    申请人： Patrick Joseph McCloskey ,  Norberto Silvi ,  Alberto Nisoli ,  Mark Giammattei

    发明人： Patrick Joseph McCloskey ,  Norberto Silvi ,  Alberto Nisoli ,  Mark Giammattei

    IPC分类号： C08G63/00

    CPC分类号： B29C47/76 ,  B29C47/0009 ,  C08G64/307

    摘要： The present invention relates to a method of preparing polycarbonate comprising the steps of: (i) introducing to an extruder through a feed port a plurality of reaction components comprising a polycarbonate oligomer, an activated carbonate residue, and a transesterification catalyst, wherein the extruder comprises the feed port, a first back vent port, and a polycarbonate exit port, wherein the feed port is located between the first back vent port and the polycarbonate exit port, and wherein the resistance to flow of the reaction components from the feed port to the first back vent port is less than or equal to the resistance to flow of the reaction components from the feed port to the polycarbonate exit port; and (ii) extruding the reaction components at one or more temperatures in a range between 100° C. and 400° C., wherein during the extrusion of the reaction components, activated carbonate residue is removed through the first back vent port, thereby preparing a polycarbonate.

    Method for making an aromatic polycarbonate
    7.
    发明授权
    Method for making an aromatic polycarbonate 有权
    制备芳族聚碳酸酯的方法

    公开(公告)号：US06790929B2

    公开(公告)日：2004-09-14

    申请号：US10389009

    申请日：2003-03-17

    申请人： Norberto Silvi ,  Mark Howard Giammattei ,  Patrick Joseph McCloskey ,  Alberto Nisoli ,  James Day ,  Narayan Ramesh ,  Paul Michael Smigelski, Jr. ,  Paul Russell Wilson

    发明人： Norberto Silvi ,  Mark Howard Giammattei ,  Patrick Joseph McCloskey ,  Alberto Nisoli ,  James Day ,  Narayan Ramesh ,  Paul Michael Smigelski, Jr. ,  Paul Russell Wilson

    IPC分类号： C08G6400

    CPC分类号： B29C47/0004 ,  B29C47/0009 ,  B29C47/60 ,  B29C47/76 ,  B29C47/767 ,  B29C67/246 ,  B29K2069/00 ,  C08G64/081 ,  C08G64/14 ,  C08G64/205 ,  C08G64/307

    摘要： This invention relates to an extrusion method preparing polycarbonates from a solution of an oligomeric polycarbonate. A mixture of bis(methyl salicyl)carbonate (BMSC), BPA and a transesterification catalyst are first equilibrated at moderate temperatures to provide a solution of polycarbonate oligomer in methyl salicylate. The solution is then fed to a devolatilizing extruder, where the polymerization reaction is completed and the methyl salicylate solvent is removed. The solution comprising the oligomeric polycarbonate can also be pre-heated under pressure to a temperature above the boiling point of methyl salicylate and subsequently fed to a devolatilizing extruder equipped for rapid flashing off the solvent. The method provides polycarbonate with greater efficiency than the corresponding process in which unreacted monomers are fed to the extruder. Additionally, the method of the invention does not require the isolation of a precursor polycarbonate comprising ester-substituted phenoxy terminal groups.

    摘要翻译： 本发明涉及从低聚聚碳酸酯溶液制备聚碳酸酯的挤压方法。 首先在中等温度下平衡双（甲基水杨酸）碳酸酯（BMSC），BPA和酯交换催化剂的混合物，以提供聚碳酸酯低聚物在水杨酸甲酯中的溶液。 然后将溶液进料到脱挥发分挤出机中，其中聚合反应完成并除去水杨酸甲酯溶剂。 包含低聚物聚碳酸酯的溶液也可以在压力下预加热到高于水杨酸甲酯沸点的温度，随后进料到脱挥发分的挤出机中，以便迅速地从溶剂中闪蒸。 该方法提供聚碳酸酯比未反应的单体进料到挤出机的相应方法具有更高的效率。 另外，本发明的方法不需要分离包含酯取代的苯氧基末端基团的前体聚碳酸酯。

    Preparation of polycarbonate having a predetermined molecular weight and level of endcapping
    8.
    发明授权
    Preparation of polycarbonate having a predetermined molecular weight and level of endcapping 有权
    具有预定分子量和封端水平的聚碳酸酯的制备

    公开(公告)号：US06399739B1

    公开(公告)日：2002-06-04

    申请号：US09934929

    申请日：2001-08-22

    申请人： Patrick Joseph McCloskey ,  Alberto Nisoli ,  Warren William Reilly

    发明人： Patrick Joseph McCloskey ,  Alberto Nisoli ,  Warren William Reilly

    IPC分类号： C08G6400

    CPC分类号： C08G64/307

    摘要： A melt method of preparing polycarbonate having a predetermined number average molecular weight and percent endcapping is described. A computerized process model is used to determine the reaction parameters to be employed in order to furnish the product polycarbonate possessing the desired Mn and %EC. Reaction parameters of importance include a suitable starting molar ratio of diaryl carbonate to dihydroxy aromatic compound, the most appropriate reaction time, reaction temperature and pressure ranges. The target polycarbonate is then prepared using reaction parameters indicated by the process model in a reactor which forms an element of the process model. Characteristics of the reactor which may be included in the process model include agitation rate and reflux ratio during the distillative removal of hydroxy aromatic compound formed as a by-product during the polymerization.

    摘要翻译： 描述了制备具有预定数均分子量和百分比封端的聚碳酸酯的熔融方法。 使用计算机化过程模型来确定要使用的反应参数，以便提供具有期望的Mn和％EC的产物聚碳酸酯。 重要的反应参数包括碳酸二芳基酯与二羟基芳族化合物的合适起始摩尔比，最合适的反应时间，反应温度和压力范围。 然后使用形成过程模型元素的反应器中由过程模型指示的反应参数制备目标聚碳酸酯。 可以包括在过程模型中的反应器的特征包括在蒸馏除去在聚合期间作为副产物形成的羟基芳族化合物的搅拌速率和回流比。