POLYSULFONE UND POLYETHERSULFONE MIT VERRINGERTEM YELLOW INDEX UND VERFAHREN ZU IHRER HERSTELLUNG
    5.
    发明公开
    POLYSULFONE UND POLYETHERSULFONE MIT VERRINGERTEM YELLOW INDEX UND VERFAHREN ZU IHRER HERSTELLUNG 有权
    VERFAHREN ZUR HERSTELLUNG VON POLYSULFONEN UND POLYETHERSULFONEN MIT VERRINGERTEM YELLOW INDEX

    公开(公告)号:EP2035484A1

    公开(公告)日:2009-03-18

    申请号:EP07730108.3

    申请日:2007-06-13

    Applicant: BASF SE

    CPC classification number: C08G75/20 C08G75/23

    Abstract: The present invention relates to a process for preparation of polysulphones with Yellowness Index to DIN 6167 smaller than 19 and of polyether sulphones with Yellowness Index to DIN 6167 smaller than 30, characterized in that the polymerization reaction is carried out in basic, aprotic solvents, using a mechanical agitator which passes close to the wall. The present invention also relates to the polyether sulphones and polysulphones obtainable for the first time by this process, and to the use of these polymers for production of mouldings, foils, membranes and foams.

    Abstract translation: 本发明涉及一种制备根据DIN 6167的黄度指数小于19的聚砜的方法,其中具有小于30的根据DIN 6167的黄度指数的聚醚砜,其中所述聚合是以碱性,非质子 使用正向输送搅拌器通过靠近壁的溶剂。 本发明还涉及通过该方法首次获得的聚醚砜和聚砜以及这种聚合物用于生产模制品,膜,膜和泡沫体的用途。

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