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    Methods for preparing transparent articles from hydroquinone polycarbonate copolymers
    3.
    发明申请
    Methods for preparing transparent articles from hydroquinone polycarbonate copolymers 有权
    由氢醌聚碳酸酯共聚物制备透明制品的方法

    公开(公告)号：US20070100118A1

    公开(公告)日：2007-05-03

    申请号：US11261262

    申请日：2005-10-28

    申请人： Gautam Chatterjee ,  Patrick McCloskey ,  Warren Reilly ,  William Richards ,  Subash Scindia ,  Gokul Srinivasan ,  Yatin Tayalia

    发明人： Gautam Chatterjee ,  Patrick McCloskey ,  Warren Reilly ,  William Richards ,  Subash Scindia ,  Gokul Srinivasan ,  Yatin Tayalia

    IPC分类号： C08G64/00

    CPC分类号： C08G64/04 ,  C08G64/12 ,  C08G64/14 ,  C08G64/307 ,  C08G64/403

    摘要： A method for producing a transparent article comprises the steps of melt transesterifying a monomer mixture in the presence of a transesterification catalyst to produce a hydroquinone polycarbonate copolymer product comprising greater than 45 mole percent of structural units derived from the hydroquinone. The monomer mixture comprises a hydroquinone, at least one aromatic dihydroxy compound other than the hydroquinone, and a carbonic acid diester. The hydroquinone polycarbonate copolymer product is then heated to a highest processing temperature of 5° C. to 20° C. above a maximum melting melt temperature for the hydroquinone copolymer product for a sufficient period of time to render the hydroquinone polycarbonate copolymer product transparent upon cooling to ambient temperature; and cooling the hydroquinone polycarbonate copolymer product to produce the transparent article. The method can also be used for producing transparent hydroquinone polycarbonate copolymers, which can be used for producing the transparent articles.

    摘要翻译： 制备透明制品的方法包括在酯交换催化剂存在下熔融酯交换单体混合物以产生包含大于45摩尔％的衍生自对苯二酚的结构单元的氢醌聚碳酸酯共聚物产物的步骤。 单体混合物包含氢醌，至少一种除氢醌以外的芳族二羟基化合物和碳酸二酯。 然后将对苯二酚聚碳酸酯共聚物产物加热至高于氢醌共聚物产物的最大熔融熔融温度的5℃至20℃的最高加工温度足够的时间以使氢醌聚碳酸酯共聚物产品在冷却时透明 到环境温度; 并冷却氢醌聚碳酸酯共聚物产物以制备透明制品。 该方法也可用于生产可用于生产透明制品的透明氢醌聚碳酸酯共聚物。

    METHOD FOR MAKING POLYCARBONATE
    4.
    发明申请
    METHOD FOR MAKING POLYCARBONATE 有权
    制备聚碳酸酯的方法

    公开(公告)号：US20060094854A1

    公开(公告)日：2006-05-04

    申请号：US10979479

    申请日：2004-11-01

    申请人： Gerardo Hidalgo ,  Patrick McCloskey ,  Alberto Nisoli ,  Lina Prada

    发明人： Gerardo Hidalgo ,  Patrick McCloskey ,  Alberto Nisoli ,  Lina Prada

    IPC分类号： C08G64/00 ,  B01J19/00

    CPC分类号： B01D3/146 ,  B01J2219/00038 ,  B01J2219/0004 ,  C08G64/307 ,  Y02P20/582

    摘要： A method of making polycarbonate comprises melt-polymerizing an aromatic dihydroxy compound and a carbonic acid diester in a presence of a polymerization catalyst in a reactor system producing a byproduct stream, wherein the polymerization catalyst comprises a quaternary phosphonium compound; and purifying the byproduct stream to separate the carbonic acid diester, wherein the separated carbonic acid diester has a phosphorous concentration of less than or equal to about 30 parts per million.

    摘要翻译： 制备聚碳酸酯的方法包括在聚合催化剂存在下在产生副产物流的反应器系统中使芳族二羟基化合物和碳酸二酯熔融聚合，其中聚合催化剂包含季鏻化合物; 并纯化副产物流以分离碳酸二酯，其中分离的碳酸二酯的磷浓度小于或等于约30ppm。

    Method for making polycarbonate
    6.
    发明申请
    Method for making polycarbonate 有权
    制作聚碳酸酯的方法

    公开(公告)号：US20060094856A1

    公开(公告)日：2006-05-04

    申请号：US10979608

    申请日：2004-11-01

    申请人： Gerardo Hidalgo ,  Patrick McCloskey ,  Alberto Nisoli ,  Linda Prada

    发明人： Gerardo Hidalgo ,  Patrick McCloskey ,  Alberto Nisoli ,  Linda Prada

    IPC分类号： C07C69/96 ,  C08G64/00

    CPC分类号： B01D3/146 ,  B01J2219/00038 ,  B01J2219/0004 ,  C08G64/307 ,  Y02P20/582

    摘要： A method of making polycarbonates comprises melt-polymerizing an aromatic dihydroxy compound and a carbonic acid diester in a presence of a polymerization catalyst in a reactor system producing a byproduct stream, wherein the polymerization catalyst comprises a quaternary phosphonium compound; and purifying the byproduct stream to separate phenol, wherein the separated phenol has a phosphorus concentration of less than or equal to about 3 part per million, based upon the total weight of the phenol separated.

    摘要翻译： 制备聚碳酸酯的方法包括在聚合催化剂存在下在产生副产物流的反应器系统中使芳族二羟基化合物和碳酸二酯熔融聚合，其中聚合催化剂包含季鏻化合物; 和纯化副产物流以分离苯酚，其中基于分离的苯酚的总重量，分离的苯酚的磷浓度小于或等于约3ppm。

    Process to make polycarbonate from bismethylsalicylcarbonate (BMSC)
    7.
    发明申请
    Process to make polycarbonate from bismethylsalicylcarbonate (BMSC) 有权
    由二甲基水杨酸碳酸酯（BMSC）制备聚碳酸酯的方法

    公开(公告)号：US20060069228A1

    公开(公告)日：2006-03-30

    申请号：US10951574

    申请日：2004-09-27

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

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

    IPC分类号： B29C47/00 ,  C08G64/00

    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.

    摘要翻译： 本发明涉及一种制备聚碳酸酯的方法，包括以下步骤：（i）通过进料口将包含聚碳酸酯低聚物，活性碳酸酯残余物和酯交换催化剂的多个反应组分引入挤出机，其中挤出机包含 所述进料口，第一后排气口和聚碳酸酯出口，其中所述进料口位于所述第一后排气口和所述聚碳酸酯出口之间，并且其中所述反应组分从所述进料口流向 第一后排气口小于或等于反应组分从进料口到聚碳酸酯出口的流动阻力; 和（ii）在100℃和400℃之间的一个或多个温度下挤出反应组分，其中在反应组分的挤出期间，通过第一后排气口除去活性碳酸盐残余物，由此制备 聚碳酸酯。

    Method for preparing a polycarbonate oligomer mixture at low temperature for manufacturing polycarbonate
    8.
    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。

    Infrared evaluation of the stoichiometric ratio of dihydric phenol to diarylcarbonate during production of polycarbonates
    10.
    发明授权
    Infrared evaluation of the stoichiometric ratio of dihydric phenol to diarylcarbonate during production of polycarbonates 失效
    在生产聚碳酸酯期间二元酚与碳酸二芳基酯的化学计量比的红外评估

    公开(公告)号：US06437082B1

    公开(公告)日：2002-08-20

    申请号：US09603488

    申请日：2000-06-23

    申请人： Linda McCracken ,  Patrick McCloskey ,  Eva Mardomingo-Santás ,  Timothy Brydon Burnell

    发明人： Linda McCracken ,  Patrick McCloskey ,  Eva Mardomingo-Santás ,  Timothy Brydon Burnell

    IPC分类号： C08G6403

    CPC分类号： B01J19/0006 ,  B01J2219/00186 ,  B01J2219/002 ,  B01J2219/00231 ,  C08G64/205 ,  C08G64/307 ,  G01N21/3577 ,  G01N2021/3595

    摘要： The stoichiometric ratio of dihydric phenol to diarylcarbonate during production of polycarbonates can be evaluated by infrared analysis, preferably using an FTIR spectrometer, to detect the amount of BPA or other dihydric phenol in the mix tank. In one format of the method, one or both of two characteristic peaks, reflecting the methyl CH bonds and hydroxyl OH bonds are evaluated. These peaks occur equally in BPA monomers and oligomers, and hence are independent of the degree of oligomerization or polymerization which has occurred. For this reason, monitoring of stoichiometry can be performed on the contents of the mix tank, or on the products from or contents of any downstream reactors. Using a calibration curve, the absorbance associated with these bonds is converted into a measure of the concentration of BPA and from that to first moles and then grams of BPA in the mixture being tested. The amount of DPC is determined by subtracting the number of grams of BPA from the total initial sample weight. In another format, a ratio of the size of the peaks associated with DPC carbonyl and BPA methyl is used directly to determine the ratio of DPC to BPA.

    摘要翻译： 聚碳酸酯生产过程中二元酚与碳酸二芳基酯的化学计量比可通过红外分析，优选使用FTIR光谱仪进行评估，以检测混合罐中BPA或其他二元酚的量。 在该方法的一种形式中，评估反映甲基CH键和羟基OH键的两个特征峰中的一个或两个。 这些峰在BPA单体和低聚物中同样出现，因此与发生的低聚或聚合度无关。 为此，可以对混合罐的内容物，或来自任何下游反应器的产物或内容物进行化学计量的监测。 使用校准曲线，与这些键相关联的吸光度转化为BPA浓度的测量值，并从之前的摩尔数，然后测定混合物中的BPA的克数。 DPC的量通过从总初始样品重量中减去BPA的克数来确定。 以另一种形式，直接使用与DPC羰基和BPA甲基相关的峰的大小比例来确定DPC与BPA的比例。