METHOD FOR PRODUCING POLYESTER COMPOSITIONS
    2.
    发明申请
    METHOD FOR PRODUCING POLYESTER COMPOSITIONS 有权
    生产聚酯组合物的方法

    公开(公告)号:US20130253165A1

    公开(公告)日:2013-09-26

    申请号:US13821142

    申请日:2011-07-29

    IPC分类号: C08G63/78

    摘要: A process of producing a polyester composition includes carrying out an esterification reaction of a dicarboxylic acid component with a diol component, and then carrying out a polycondensation reaction, wherein the diol component is added twice or more during a time from completion of the esterification reaction until beginning the polycondensation reaction, and alkali metal phosphate is added with an amount of COOH terminal groups of an esterification reactant being not more than 150 eq/ton.

    摘要翻译: 制造聚酯组合物的方法包括进行二羧酸组分与二醇组分的酯化反应,然后进行缩聚反应,其中二醇组分在酯化反应完成的时间内加入两次或更多,直到 开始缩聚反应,加入碱金属磷酸盐,酯化反应物的COOH端基量不超过150eq / ton。