PHENOL WITH LOW LEVELS OF METHYLBENZOFURAN
    4.
    发明授权
    PHENOL WITH LOW LEVELS OF METHYLBENZOFURAN 失效
    具有低含量-N-甲基苯酚

    公开(公告)号:EP0764146B1

    公开(公告)日:1999-08-04

    申请号:EP95918294.0

    申请日:1995-05-03

    IPC分类号: C07C37/86 C07C37/08 C07C39/04

    摘要: A process for the reduction of methylbenzofuran (MBF) impurities in phenol obtained from the decomposition product of cumene hydroperoxide requires treating the phenol to reduce the level of acetol, contacting the phenol containing a low level of acetol with an acid resin at sufficient temperature and residence time to reduce the level of MBF by conversion to higher boiling compounds, then distilling the phenol to separate phenol from higher boiling compounds. The phenol may be treated in known ways, such as by treatment with an amine, to reduce the level of acetol. The phenol containing a low level of acetol is contacted with a strong acid resin to reduce the level of MBF.

    METHOD FOR REMOVAL OF ACETOL FROM PHENOL
    5.
    发明公开
    METHOD FOR REMOVAL OF ACETOL FROM PHENOL 有权
    程序用于去除苯酚丙酮

    公开(公告)号:EP1776326A1

    公开(公告)日:2007-04-25

    申请号:EP05712610.4

    申请日:2005-02-03

    IPC分类号: C07C37/86 C07C39/04

    CPC分类号: C07C37/86 C07C39/04

    摘要: A method is provided for the efficient, low cost removal of acetol from a phenol stream. The method results in removal of substantially all of the acetol from the phenol stream without the formation of substantial amounts of additional methylbenzofuran. The method also avoids the use of expensive reagents and capital intensive distillation equipment.

    PAINTABLE, IN-REACTOR BLENDED, THERMOPLASTIC POLYOLEFIN
    6.
    发明公开
    PAINTABLE, IN-REACTOR BLENDED, THERMOPLASTIC POLYOLEFIN 审中-公开
    涂布的,包括核一般新闻热塑性聚烯烃

    公开(公告)号:EP1670854A1

    公开(公告)日:2006-06-21

    申请号:EP04785232.2

    申请日:2004-09-29

    IPC分类号: C08L23/10

    摘要: A paintable impact copolymer composition is produced by in-reactor blending of a xylene insoluble polypropylene fraction and a xylene soluble ethylene-propylene rubber (EPR) fraction. The composition comprises from about 5 wt. % to about 50 wt.% a xylene-soluble portion and from about 50 wt. % to about 95 wt. % a xylene­insoluble portion. The ratio of the weight average molecular weight of said xylene­soluble portion to that of said xylene-insoluble portion is from about 0.5 to about 1.8. The intrinsic viscosity of said xylene-soluble portion is from about 0.5 to about 7.0 dL/g. The xylene-soluble portion comprises from about 30 to about 70 mole percent ethylene units.