Reduction of reaction by-products in polycarbonate resins
    1.
    发明授权
    Reduction of reaction by-products in polycarbonate resins 有权
    降低聚碳酸酯树脂中的副产物

    公开(公告)号:US06590068B2

    公开(公告)日:2003-07-08

    申请号:US09683064

    申请日:2001-11-14

    IPC分类号: C08F600

    CPC分类号: C08G64/307

    摘要: Polycarbonate resin containing reduced levels of reaction by-products can be prepared by adding to the polycarbonate a scavenging agent having the formula: wherein R1 is alkoxy, phenoxy, benzyloxy or phenyl, and R2 is a substituted or unsubstituted C1-C30 alkyl group, C6-C30 aryl group, C7-C30 aralkyl group or C6-C30 aryloxy group and processing the resulting mixture at an elevated temperature and for a period of time such that the scavenging agent reacts with linear Fries products to produce capped linear Fries products, and with residual phenols (monohydric or dihydric) to produce capped phenols and ortho-substituted phenols.

    摘要翻译: 含有降低反应副产物含量的聚碳酸酯树脂可以通过向聚碳酸酯中加入具有下式的清除剂来制备:其中R1是烷氧基,苯氧基,苄氧基或苯基,R2是取代或未取代的C1-C30烷基,C6 -C30芳基,C7-C30芳烷基或C6-C30芳氧基,并在升高的温度下处理所得混合物一段时间,使得清除剂与线性Fries产物反应以产生封端的线性Fries产品,并且 残留酚(一元或二元)以产生封端的酚和邻位取代的酚。

    Process for the production of polycarbonate
    3.
    发明授权
    Process for the production of polycarbonate 有权
    聚碳酸酯生产工艺

    公开(公告)号:US07259223B2

    公开(公告)日:2007-08-21

    申请号:US10802705

    申请日:2004-03-17

    IPC分类号: C08G64/00

    CPC分类号: C08G64/14 C08G64/307

    摘要: A process for the production of polycarbonate having increased end-cap levels, the process comprising adding a terminal blocking agent of the formula: wherein R1 is a propoxy or butoxy and R2 is selected from the group consisting of C1-C30 alkyl, C1-C30 alkoxy, C6-C30 aryl, C7-C30 aralkyl, and C6-C30 aryloxy.

    摘要翻译: 一种生产具有增加的端帽水平的聚碳酸酯的方法,该方法包括加入下式的封端剂:其中R 1是丙氧基或丁氧基,R 2是 >选自C 1 -C 30烷基,C 1 -C 30烷氧基,C 1 -C 30烷基, C 6 -C 30芳基,C 7 -C 30芳烷基和C 6 - 仲-C 30芳氧基。

    METHODS FOR THE MANUFACTURE OF POLYCARBONATE COMPOSITIONS, THE COMPOSITIONS FORMED THEREBY, AND ARTICLES THEREOF
    6.
    发明申请
    METHODS FOR THE MANUFACTURE OF POLYCARBONATE COMPOSITIONS, THE COMPOSITIONS FORMED THEREBY, AND ARTICLES THEREOF 有权
    制备聚碳酸酯组合物的方法,其形成的组合物及其制品

    公开(公告)号:US20100160575A1

    公开(公告)日:2010-06-24

    申请号:US12338396

    申请日:2008-12-18

    IPC分类号: C08L69/00

    摘要: A method of making a thermoplastic composition comprises melt blending a reaction mixture comprising a first polycarbonate comprising repeat units derived from monoaryl monomers (II) and (III) and a diaryl monomer (IV), wherein the sum of the mole percent of the repeat units derived from monomers (II) and (III) is greater than or equal to 30 mole percent, and the mole percent of the repeat units derived from monomer (IV) is 5 to 70 mole percent, each based on the total moles the repeat units derived from monomers (II), (III), and (IV), and the total weight of the repeat units derived from monomers (II), (III), and (IV) is greater than or equal to 90 wt. % of the first polycarbonate; and an additional polycarbonate, comprising 50 to 100 mole percent of repeat units derived from a bisphenol cyclohexane.

    摘要翻译: 制备热塑性组合物的方法包括熔融共混包含第一聚碳酸酯的反应混合物,所述第一聚碳酸酯包含衍生自单芳基单体(II)和(III)的重复单元和二芳基单体(IV),其中重复单元的摩尔百分比之和 衍生自单体(II)和(III)的重复单元的摩尔百分数大于或等于30摩尔%,并且衍生自单体(IV)的重复单元的摩尔百分比为5至70摩尔%,各自基于总摩尔数, 衍生自单体(II),(III)和(IV)的单体(II),(III)和(IV)的重复单元的总重量大于或等于90wt。 %的第一聚碳酸酯; 和另外的聚碳酸酯,其包含50-100摩尔%的衍生自双酚环己烷的重复单元。

    Methods for the manufacture of polycarbonate compositions, the compositions formed thereby, and articles thereof
    7.
    发明授权
    Methods for the manufacture of polycarbonate compositions, the compositions formed thereby, and articles thereof 有权
    用于制造聚碳酸酯组合物的方法,由此形成的组合物及其制品

    公开(公告)号:US08609786B2

    公开(公告)日:2013-12-17

    申请号:US12338396

    申请日:2008-12-18

    IPC分类号: C08L69/00

    摘要: A method of making a thermoplastic composition comprises melt blending a reaction mixture comprising a first polycarbonate comprising repeat units derived from monoaryl monomers (II) and (III) and a diaryl monomer (IV), wherein the sum of the mole percent of the repeat units derived from monomers (II) and (III) is greater than or equal to 30 mole percent, and the mole percent of the repeat units derived from monomer (IV) is 5 to 70 mole percent, each based on the total moles the repeat units derived from monomers (II), (III), and (IV), and the total weight of the repeat units derived from monomers (II), (III), and (IV) is greater than or equal to 90 wt. % of the first polycarbonate; and an additional polycarbonate, comprising 50 to 100 mole percent of repeat units derived from a bisphenol cyclohexane.

    摘要翻译: 制备热塑性组合物的方法包括熔融共混包含第一聚碳酸酯的反应混合物,所述第一聚碳酸酯包含衍生自单芳基单体(II)和(III)的重复单元和二芳基单体(IV),其中重复单元的摩尔百分比之和 衍生自单体(II)和(III)的重复单元的摩尔百分数大于或等于30摩尔%,并且衍生自单体(IV)的重复单元的摩尔百分比为5至70摩尔%,各自基于总摩尔数, 衍生自单体(II),(III)和(IV)的单体(II),(III)和(IV)的重复单元的总重量大于或等于90wt。 %的第一聚碳酸酯; 和另外的聚碳酸酯,其包含50-100摩尔%的衍生自双酚环己烷的重复单元。

    METHOD FOR MAKING POLYCARBONATE
    9.
    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

    IPC分类号: C08G64/00 B01J19/00

    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。