Preparation of phenylphosphate esters of 4,4'-biphenol
    1.
    发明公开
    Preparation of phenylphosphate esters of 4,4'-biphenol 有权
    苯基磷酸盐的制备4,4'-联苯酚酯

    公开(公告)号:EP1327635A1

    公开(公告)日:2003-07-16

    申请号:EP03075003.8

    申请日:2003-01-02

    IPC分类号: C07F9/12

    CPC分类号: C07F9/1406 C07F9/12

    摘要: A process for preparing 4,4'-biphenol phenylphosphate ester products is described. These ester products, having low acid value and low contents of phenol and residual catalyst, being flowable powders, and further having excellent physical properties such as heat and hydrolytic stability, are useful as halogen-free, effective flame retardants, particularly in thermoplastic polymer compositions.