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    High molecular weight polycarbonates of .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexakisaryl-1,3-and/o r -1,4-dimethyl benzenes
    6.
    发明授权
    High molecular weight polycarbonates of .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexakisaryl-1,3-and/o r -1,4-dimethyl benzenes 失效
    {60，{60，{60，{60 {40，{60 {40，{60 {40-己基芳基-1,3-和/或-1,4-二甲基苯

    公开(公告)号：US4009148A

    公开(公告)日：1977-02-22

    申请号：US579532

    申请日：1975-05-21

    申请人： Dieter Neuray ,  Erhard Tresper ,  Dieter Freitag

    发明人： Dieter Neuray ,  Erhard Tresper ,  Dieter Freitag

    IPC分类号： C08G63/00 ,  C08G64/00 ,  C08G64/06 ,  C08G64/20 ,  C08G64/22 ,  C08G64/28 ,  C08G17/13

    CPC分类号： C08G64/28 ,  C08G64/06 ,  Y10T428/31507

    摘要： The present invention is related to high molecular weight polycarbonates based on aromatic dihydroxy compounds which contain 5 to 100 mol % preferably 20 to 100 mol % of structural units derived from .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexakisaryl-1,3-and/or -1,4-dimethyl benzene dihydroxy compounds. In a preferred embodiment, the polycarbonate is a copolymer of the hexakisaryl dihydroxy compounds and bisphenols known to be useful in producing polycarbonates. The residues of the hexakisaryl compound may be 5 to 90 mol %, preferably 20 to 70 mol % of the structural units. An especially preferred copolymer is that between the hexakisaryl compounds and .alpha.,.alpha.'-(hydroxyphenyl)-diisopropyl benzenes. These polycarbonates show improved heat stability and higher second order transition temperature points than conventional polycarbonates and are useful in applications involving high service temperatures such as electrical insulating film.

    摘要翻译： 本发明涉及基于芳族二羟基化合物的高分子量聚碳酸酯，其含有5至100摩尔％，优选20至100摩尔％的衍生自α，α，α，α'，α'，α'-六氟甲磺酸的结构单元， 1,3-和/或-1,4-二甲基苯二羟基化合物。 在优选的实施方案中，聚碳酸酯是已知可用于制备聚碳酸酯的六芳基二羟基化合物和双酚的共聚物。 六芳基化合物的残基可以为结构单元的5〜90摩尔％，优选为20〜70摩尔％。 特别优选的共聚物是六芳基化合物和α，α'-（羟基苯基） - 二异丙基苯之间的共聚物。 这些聚碳酸酯显示比常规聚碳酸酯更好的热稳定性和更高的二阶转变温度点，并且可用于涉及高使用温度的应用，例如电绝缘膜。

    POLYCARBONATE COMPOSITIONS HAVING ENHANCED OPTICAL PROPERTIES, METHODS OF MAKING AND ARTICLES COMPRISING THE POLYCARBONATE COMPOSITIONS
    10.
    发明申请
    POLYCARBONATE COMPOSITIONS HAVING ENHANCED OPTICAL PROPERTIES, METHODS OF MAKING AND ARTICLES COMPRISING THE POLYCARBONATE COMPOSITIONS 有权
    具有增强光学性质的聚碳酸酯组合物，制备方法和包含聚碳酸酯组合物的制品

    公开(公告)号：US20160289377A1

    公开(公告)日：2016-10-06

    申请号：US15055916

    申请日：2016-02-29

    申请人： SABIC Global Technologies B.V.

    发明人： Johannes de Brouwer ,  Paulus Johannes Maria Eijsbouts ,  Hatem Abdallah Belfadhel ,  Jos Arie van den Bogerd

    IPC分类号： C08G64/06 ,  C08G64/28 ,  C08L69/00

    CPC分类号： C08G64/06 ,  C08G64/24 ,  C08G64/28 ,  C08J5/18 ,  C08J2369/00 ,  C08L69/00 ,  H01L33/56

    摘要： In some embodiments, a method of making a polycarbonate composition comprises: polymerizing by an interfacial polymerization, reactants comprising a starting material comprising a bisphenol-A to form a bisphenol-A polycarbonate, wherein the bisphenol-A has a purity of greater than or equal to 99.65 wt % and a sulfur content of less than or equal to 2 ppm. The polycarbonate composition has a free hydroxyl content of less than or equal to 150 ppm, and wherein a molded article of the polycarbonate composition has transmission level greater than or equal to 90.0% at 2.5 mm thickness as measured by ASTM D1003-00 and a yellow index (YI) less than or equal to 1.5 as measured by ASTM D1925.

    摘要翻译： 在一些实施方案中，制备聚碳酸酯组合物的方法包括：通过界面聚合聚合反应物，其包含包含双酚A的原料以形成双酚A聚碳酸酯，其中所述双酚-A具有大于或等于 至99.65重量％，硫含量小于或等于2ppm。 该聚碳酸酯组合物具有小于或等于150ppm的游离羟基含量，并且其中聚碳酸酯组合物的模塑制品具有通过ASTM D1003-00测量的2.5mm厚度的透射率大于或等于90.0％，并且黄色 指数（YI）小于或等于1.5，由ASTM D1925测量。