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19 条记录 (耗时 0.024 秒)

    Process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers)
    7.
    发明授权
    Process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers) 失效
    用聚（芳基醚）制备聚碳酸酯和/或聚芳酯嵌段共聚物的方法

    公开(公告)号：US5159028A

    公开(公告)日：1992-10-27

    申请号：US700489

    申请日：1991-05-15

    申请人： Markus Matzner ,  George T. Kwiatkowski ,  Robert A. Clendinning ,  Selvaraj Savariar ,  Mohammad J. El-Hibri ,  Charles N. Merriam ,  Robert J. Cotter

    发明人： Markus Matzner ,  George T. Kwiatkowski ,  Robert A. Clendinning ,  Selvaraj Savariar ,  Mohammad J. El-Hibri ,  Charles N. Merriam ,  Robert J. Cotter

    IPC分类号： C08G81/00

    CPC分类号： C08G81/00

    摘要： The invention describes a novel process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers). The process is comprised of the steps:(a) the reaction of a dihydroxy-terminated poly(aryl ether) oligomer with a high molecular weight polycarbonate, or a high molecular weight polyarylate, or a high molecular weight poly(arylate-carbonate) to yield a block copolymer; followed by(b) the coupling of the material obtained in step (a) to the required molecular weight, using a diaryl ester of carbonic acid or of a dicarboxylic acid.Both steps are performed in the presence of a catalyst. The copolymerizations can be run in bulk under vacuum in a single or twin screw extruder. Using the above conditions high molecular weight, high quality block copolymers having a combination of excellent properties are obtained in a matter of minutes.

    摘要翻译： 本发明描述了用聚（芳基醚）制备聚碳酸酯和/或聚芳酯嵌段共聚物的新方法。 该方法包括以下步骤：（a）二羟基封端的聚（芳基醚）低聚物与高分子量聚碳酸酯或高分子量聚芳酯或高分子量聚芳基酯 - 碳酸酯的反应与 得到嵌段共聚物; （b）使用碳酸或二羧酸的二芳基酯将步骤（a）中获得的材料与所需的分子量的偶联。 两个步骤都在催化剂存在下进行。 共聚可以在单螺杆或双螺杆挤出机中在真空下大量运行。 使用上述条件可以在几分钟内获得具有优异性能的组合的高分子量的高质量嵌段共聚物。

    Aromatic amorphous thermoplastic terpolymers
    9.
    发明授权
    Aromatic amorphous thermoplastic terpolymers 失效
    芳香族无定形热塑性三元共聚物

    公开(公告)号：US4857625A

    公开(公告)日：1989-08-15

    申请号：US35259

    申请日：1987-04-02

    申请人： Robert A. Clendinning ,  Louis M. Maresca ,  Markus Matzner ,  Thomas H. Schwab

    发明人： Robert A. Clendinning ,  Louis M. Maresca ,  Markus Matzner ,  Thomas H. Schwab

    IPC分类号： C08G75/23 ,  C08L71/00 ,  C08L81/06

    CPC分类号： C08L71/00 ,  C08G75/23 ,  C08L81/06

    摘要： Described herein are amorphous thermoplastic terpolymers containing units of the formula: ##STR1## wherein R is independently hydrogen, C.sub.1 to C.sub.6 alkyl, or C.sub.4 to C.sub.8 cycloalkyl, X' is independently ##STR2## wherein R.sub.1 and R.sub.2 are independently hydrogen or C.sub.1 to C.sub.9 alkyl; ##STR3## wherein R.sub.3 and R.sub.4 are independently hydrogen or C.sub.1 to C.sub.8 alkyl and a.sub.1 is an integer of 2 to 7; --S--, --O--, or ##STR4## a is an integer of 0 to 4 and n is independently an integer of 1 to 3. The units are attached to each other by an --0-- bond. These polymers have an excellent combination of mechanical properties. They display high notched izod impact values, high heat distortion temperatures and excellent environmental stress crack resistance.

    摘要翻译： 本文描述的是含有下式的单元的无定形热塑性三元共聚物：其中R独立地是氢，C 1至C 6烷基或C 4至C 8环烷基，X 1是（C 1 -C 6） 独立地，其中R 1和R 2独立地是氢或C 1至C 9烷基; 其中R 3和R 4独立地是氢或C 1至C 8烷基，而a1是2至7的整数; -S-，-O-或 a为0〜4的整数，n为1〜3的整数。该单元通过-O-键彼此连接。 这些聚合物具有优异的机械性能组合。 它们显示出高切口izod冲击值，高热变形温度和优异的耐环境应力开裂性。