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    Polycarbonate-polyolefin moulding compositions
    4.
    发明授权
    Polycarbonate-polyolefin moulding compositions 失效
    聚碳酸酯 - 聚烯烃模塑组合物

    公开(公告)号：US4499237A

    公开(公告)日：1985-02-12

    申请号：US180334

    申请日：1980-08-22

    申请人： Peter Tacke ,  Helmut Korber ,  Josef Merten ,  Dieter Neuray

    发明人： Peter Tacke ,  Helmut Korber ,  Josef Merten ,  Dieter Neuray

    IPC分类号： C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L33/00 ,  C08L33/02 ,  C08L51/00 ,  C08L51/02 ,  C08L69/00 ,  C08L101/00

    CPC分类号： C08L69/00

    摘要： A mixture comprising 1. from 70 to 99% by weight of a predominantly aromatic polycarbonate; and 2. from 30 to 1% by weight of a polyolefin graft polymer of (a) 70 to 95% by weight of a graft base consisting of a homopolymer of aliphatic and/or aromatic monoolefins or of a copolymer of these olefins, and up to 50% by weight of other monoolefinically unsaturated, radially polymerizable compounds and/or up to 5% by weight of diolefins, and (b) 5 to 30% by weight of at least one graft-polymerizable vinyl compound, the olefin graft polymers having been obtained by contacting a melt of the graft base (a) with oxygen or an oxygen-containing gas for at most 10 min. with intensive mixing under a pressure of from 1 to 150 bars and at a temperature of from 80.degree. C. to 300.degree. C., adding the vinyl compounds (b) to be grafted on immediately afterwards with intensive mixing in the absence of oxygen or oxygen-containing gas and removing the residual monomers after the graft polymerization reaction.

    摘要翻译： 包含1.70至99重量％的主要是芳族聚碳酸酯的混合物; 和2.30至1重量％的（a）70至95重量％的由脂族和/或芳族单烯烃的均聚物或这些烯烃的共聚物组成的接枝基质的聚烯烃接枝聚合物和上述 至50重量％的其它单烯属不饱和的可径向聚合的化合物和/或至多5重量％的二烯烃，和（b）5至30重量％的至少一种可接枝聚合的乙烯基化合物，所述烯烃接枝聚合物具有 通过将接枝基质（a）的熔体与氧或含氧气体接触至多10分钟而获得。 在1至150巴的压力和80℃至300℃的温度下进行强烈混合，然后在不存在氧气的情况下立即将密封混合的乙烯基化合物（b）立即加入， 含氧气体，并在接枝聚合反应后除去残留的单体。

    Process for the production of aromatic polyesters
    10.
    发明授权
    Process for the production of aromatic polyesters 失效
    生产芳香族聚酯的方法

    公开(公告)号：US4923957A

    公开(公告)日：1990-05-08

    申请号：US292917

    申请日：1989-01-03

    申请人： Peter Tacke ,  Ulrich Grigo ,  Karsten-Josef Idel

    发明人： Peter Tacke ,  Ulrich Grigo ,  Karsten-Josef Idel

    IPC分类号： C08G63/19 ,  C08G63/195 ,  C08G63/78

    CPC分类号： C08G63/78 ,  C08G63/195

    摘要： Aromatic polyesters based on diphenols and iso- and/or terephthalic acid are produced by transesterification of esters of the diphenols with the aromatic dicarboxylic acids in the melt by first reacting the aromatic dicarboxylic acids with a stoichiometric excess of the diphenol esters to form oligomers and then condensing the resulting oligomers to the aromatic polyesters with elimination and removal by distillation of diphenol ester.

    摘要翻译： 基于二酚和异 - 和/或对苯二甲酸的芳族聚酯通过首先使芳族二羧酸与化学计量过量的二酚酯反应形成低聚物，然后通过二元酚的酯与芳族二羧酸在熔体中的酯交换而产生，然后 通过蒸馏二酚酯消除和除去，将所得的低聚物缩合成芳族聚酯。