Late-addition catalyst formulation
    1.
    发明公开
    Late-addition catalyst formulation 有权
    Spätzuzugegebene Katalysatorformulierung

    公开(公告)号:EP2703423A1

    公开(公告)日:2014-03-05

    申请号:EP13191754.4

    申请日:2011-06-29

    IPC分类号: C08G64/20 C08G64/30

    摘要: The present invention provides a melt polymerization reactor system and method of producing polycarbonate using a late-addition catalyst formulation having a melt transesterification catalyst dispersed in a liquid carrier system which preferably includes less than 10 wt% water. The formulation also preferably includes a liquid carrier system having phenol and a cosolvent. The melt transesterification catalyst can be present in the formulation in a range of 50 ppm to 60,000 ppm.

    摘要翻译: 本发明提供一种熔融聚合反应器系统和使用具有分散在液体载体体系中的熔融酯交换催化剂的后期加成催化剂制剂生产聚碳酸酯的方法,该液体载体体系优选包含小于10wt%的水。 该制剂还优选包括具有苯酚和助溶剂的液体载体体系。 熔体酯交换催化剂可以在制剂中存在于50ppm至60,000ppm的范围内。