PROCESS FOR PRODUCING POLYHYDROXYALKANOATE CRYSTAL
    10.
    发明公开
    PROCESS FOR PRODUCING POLYHYDROXYALKANOATE CRYSTAL 有权
    生产聚羟基烷酸酯晶体的方法

    公开(公告)号:EP1688450A1

    公开(公告)日:2006-08-09

    申请号:EP04818971.6

    申请日:2004-11-19

    IPC分类号: C08G63/88

    CPC分类号: C08G63/88 C08G63/06

    摘要: The present invention provides a method for conveniently obtaining a biodegradable polyhydroxyalkanoate by a solvent extraction method.
    A method for producing a polyhydroxyalkanoate crystal which comprises precipitating a polyhydroxyalkanoate crystal using a monohydric alcohol having 4 to 10 carbon atoms as a extraction solvent, keeping a polyhydroxyalkanoate solution containing 0.1 to 10% by weight of water relative to the total amount of the solution warm at 70°C or higher, and cooling the solution to below 70°C.

    摘要翻译: 本发明提供了一种通过溶剂萃取方法方便地获得生物可降解聚羟基链烷酸酯的方法。 一种聚羟基链烷酸酯结晶的制造方法,其特征在于,使用碳原子数4〜10的一元醇作为提取溶剂,使聚羟基链烷酸酯结晶析出,相对于溶液总量,含有0.1〜10重量%的水的聚羟基链烷酸酯溶液 在70℃或更高,并将溶液冷却至70℃以下。