METHOD FOR PRODUCING LIQUID-CRYSTALLINE POLYESTER POWDER
    5.
    发明申请
    METHOD FOR PRODUCING LIQUID-CRYSTALLINE POLYESTER POWDER 失效
    生产液晶聚酯粉末的方法

    公开(公告)号:US20110240353A1

    公开(公告)日:2011-10-06

    申请号:US13073739

    申请日:2011-03-28

    IPC分类号: H05K1/00 C08G63/191 C08L67/03

    摘要: The present invention provides a method for producing a liquid-crystalline polyester powder, the method comprising: carrying out melt polycondensation of monomers and/or its acylated monomers to obtain a corresponding polyester having a flow initiation temperature of 240 to 300° C.; spreading and solidifying the polyester so as to be a layer thereof with a thickness of 1 cm or more: crushing the solidified substance to obtain a powder having a volume average particle diameter of 3 to 30 μm; and subjecting the powder to a heat treatment to obtain a powder having a flow initiation temperature higher than the flow initiation temperature of the liquid-crystalline polyester after the melt polycondensation.

    摘要翻译: 本发明提供了一种液晶聚酯粉末的制造方法,该方法包括:进行单体和/或其酰化单体的熔融缩聚,得到流动起始温度为240〜300℃的相应的聚酯。 将聚酯延伸并固化成厚度为1cm以上的层:粉碎固化物,得到体积平均粒径为3〜30μm的粉末; 对粉末进行热处理,得到在熔融缩聚后流动开始温度高于液晶聚酯的流动起始温度的粉末。