PROCESS FOR THE PRODUCTION OF IMPACT-MODIFIED FILLED POLYCARBONATE COMPOSITIONS
    1.
    发明申请
    PROCESS FOR THE PRODUCTION OF IMPACT-MODIFIED FILLED POLYCARBONATE COMPOSITIONS 有权
    冲击改性填充聚碳酸酯组合物的生产工艺

    公开(公告)号:US20090118394A1

    公开(公告)日:2009-05-07

    申请号:US12199194

    申请日:2008-08-27

    IPC分类号: B29C47/50 C08J3/22 B82B1/00

    摘要: The present invention relates to a process for the production of impact-modified filled polycarbonate compositions and molding compositions. A process of the present invention involves: (i) mixing the CNT (component C) with rubber-containing vinyl copolymer (component B) and/or rubber-free vinyl copolymer (component D) on a twin screw extruder, to obtain a CNT masterbatch, (ii) mixing the CNT masterbatch with polycarbonate (component A) and optionally with Component B and/or Component D and optionally with an additive on a twin screw extruder. A polycarbonate composition prepared according to the present invention does not experience degradation of the molecular weight of the polycarbonate during compounding a compared to processes known in the art.

    摘要翻译: 本发明涉及一种生产冲击改性填充聚碳酸酯组合物和模塑组合物的方法。 本发明的方法包括:(i)在双螺杆挤出机上将CNT(组分C)与含橡胶的乙烯基共聚物(B组分)和/或无橡胶乙烯基共聚物(组分D)混合,得到CNT 母粒,(ii)将CNT母料与聚碳酸酯(组分A)和任选地与组分B和/或组分D以及任选的添加剂混合在双螺杆挤出机上。 与本领域已知的方法相比,根据本发明制备的聚碳酸酯组合物在配混期间不会降解聚碳酸酯的分子量。