VEREINZELUNG EINER POLYARYLENETHERLÖSUNG
    3.
    发明公开
    VEREINZELUNG EINER POLYARYLENETHERLÖSUNG 审中-公开
    VEREINZELUNG EINERPOLYARYLENETHERLÖSUNG

    公开(公告)号:EP3022254A1

    公开(公告)日:2016-05-25

    申请号:EP14739821.8

    申请日:2014-07-16

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing polyarylene ether beads from a polyarylene ether solution, having the steps of i) separating the polyarylene ether solution in a separating device which is vibrated at a frequency ranging from 10 to 1400 Hz, thereby obtaining drops, and ii) transporting the drops into a precipitation bath, thereby forming polyarylene ether beads in the precipitation bath. The precipitation bath (A) contains at least one aprotic solvent (component (1)) and at least one protic solvent (component (2)), (B) has a temperature of 0 °C to T
    c , the critical temperature T
    c in [°C] being determined by the numerical equation T
    c = (77 - c)/0.58, in which c is the concentration of the component (1) in the precipitation bath in [wt.%], and (C) has the component (1) in concentrations of 5 wt.% to c
    c , the critical concentration c
    c in [wt.%] being determined by the numerical equation c
    c = 77 - 0.58 * T, in which T is the temperature in the precipitation bath in [°C], wherein the wt.% in each case is based on the sum of the wt.% of the component (1) and the component (2) in the precipitation bath.

    Abstract translation: 本发明涉及一种由聚芳醚溶液制备聚亚芳基醚珠粒的方法,包括以下步骤:i)将分散装置中的聚亚芳基醚溶液除以10-1400Hz的频率振动得到液滴,ii (A)包含至少一种非质子溶剂(组分(1))和至少一种质子溶剂(组分(2)),(B)具有至少一种质子溶剂 温度为0℃至Tc,其中[℃]中的临界温度Tc可以通过数学方程式Tc =(77-c)/0.58确定,其中c是组分(1)中的浓度 沉淀浴中的[重量%]和(C)的组分(1)的浓度为5重量%〜cc,其中临界浓度cc(重量%)可以通过数学式cc = 77-0.58 * T,其中T是沉淀浴中的温度[℃],其中 重量百分比分别基于沉淀浴中组分(1)和组分(2)的重量百分比之和。

    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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