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212 条记录 (耗时 0.021 秒)

    Process for the preparation of branched polycarbonates
    1.
    发明授权
    Process for the preparation of branched polycarbonates 失效
    支链聚碳酸酯的制备方法

    公开(公告)号：US4174437A

    公开(公告)日：1979-11-13

    申请号：US894229

    申请日：1978-04-07

    申请人： Karsten Idel ,  Dieter Freitag ,  Werner Nouvertne

    发明人： Karsten Idel ,  Dieter Freitag ,  Werner Nouvertne

    IPC分类号： C08G63/00 ,  C08G64/00 ,  C08G64/06 ,  C08G63/62

    CPC分类号： C08G64/06 ,  C08K5/42

    摘要： The present invention relates to a process for the preparation of branched thermoplastic polycarbonates, characterized in that diphenols are completely reacted with about 0.05 to about 2.0 mol %, relative to mols of diphenols, of cyanuric chloride in a primary reaction, while controlling the pH and temperature and in the presence of a co-solvent, and thereafter the products are subjected to polycondensation, in accordance with known methods of the phase boundary process, to give high-molecular weight, branched polycarbonates. The invention further relates to the branched polycarbonates prepared by this process.

    摘要翻译： 本发明涉及一种制备支链热塑性聚碳酸酯的方法，其特征在于二酚在一次反应中相对于二酚的摩尔数为约0.05至约2.0摩尔％，同时控制pH和 温度和在共溶剂存在下，然后根据已知的相边界方法对产物进行缩聚，得到高分子量的支化聚碳酸酯。 本发明还涉及通过该方法制备的支化聚碳酸酯。

    Polycarbonate of cycloalkylidene bisphenol
    2.
    发明授权
    Polycarbonate of cycloalkylidene bisphenol 失效
    环亚烷基双酚的聚碳酸酯

    公开(公告)号：US5010163A

    公开(公告)日：1991-04-23

    申请号：US450604

    申请日：1989-12-13

    申请人： Volker Serini ,  Dieter Freitag ,  Uwe Westeppe ,  Karsten Idel ,  Ulrich Grigo ,  Carl Casser ,  Klaus-Christian Paetz ,  Manfred Hajek

    发明人： Volker Serini ,  Dieter Freitag ,  Uwe Westeppe ,  Karsten Idel ,  Ulrich Grigo ,  Carl Casser ,  Klaus-Christian Paetz ,  Manfred Hajek

    IPC分类号： C08G64/00 ,  C08G64/06

    CPC分类号： C08G64/06

    摘要： Thermoplastic aromatic polycarbonates having average molecular weight Mw of at least 10,000 which contain bifunctional carbonate structural units corresponding to formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another represent hydrogen, a C.sub.1 -C.sub.12 -hydrocarbon, halogen,m is 2 or 3 andX represents hydrogen or a C.sub.6 -C.sub.12 hydrocarbon, at least one substituent X being a C.sub.6 -C.sub.12 hydrocarbon radical,in quantities of from 100 to 1 mol-% based on the total quantity of difunctional carbonate structural units in the polycarbonate.

    摘要翻译： 具有至少10,000的平均分子量＆amp; Mw和Mw的热塑性芳族聚碳酸酯，其含有对应于式（I）的双官能碳酸酯结构单元，其中R 1，R 2，R 3和R 4彼此独立地表示氢，C1- C 12烃，卤素，m为2或3，X表示氢或C 6 -C 12烃，至少一个取代基X为C 6 -C 12烃基，其量为100至1摩尔％，基于总量 的聚碳酸酯中的双官能碳酸酯结构单元。

    Polycarbonate molding compositions with improved flame-repellency
    5.
    发明授权
    Polycarbonate molding compositions with improved flame-repellency 失效
    具有改善阻燃性能的聚碳酸酯模塑组合物

    公开(公告)号：US4208489A

    公开(公告)日：1980-06-17

    申请号：US868145

    申请日：1978-01-09

    申请人： Manfred Schmidt ,  Wolfgang Cohnen ,  Frank Kleiner ,  Dieter Freitag ,  Karsten Idel

    发明人： Manfred Schmidt ,  Wolfgang Cohnen ,  Frank Kleiner ,  Dieter Freitag ,  Karsten Idel

    IPC分类号： C08L69/00 ,  C08K3/00 ,  C08K5/16 ,  C08K5/34 ,  C08K5/3417 ,  C08K13/02 ,  C08K5/42 ,  C08K5/53

    CPC分类号： C08K5/3417 ,  C08K3/00 ,  C08K5/34

    摘要： Thermoplastic aromatic polycarbonate molding compositions with improved flame retardancy which contain an alkali metal salt of an organic or inorganic acid and optionally a perfluoroethylene, characterized in that they contain a tetrahalogenophthalimide of the general formulae (I) or (II) or mixtures thereof ##STR1## wherein R denotes a hydrogen atom or a C.sub.1 to C.sub.4 l alkyl, C.sub.6 H.sub.5, C.sub.10 H.sub.7, C.sub.6 H.sub.4 X, C.sub.6 H.sub.3 X.sub.2 or C.sub.6 H.sub.2 X.sub.3 group, in which X denotes a fluorine, chlorine or bromine atom, R' denotes a single bond or a C.sub.2 to C.sub.4 alkylene, C.sub.6 H.sub.4 or p-diphenylene radical, and Z denotes a chlorine or bromine atom,are provided.

    摘要翻译： 具有改进的阻燃性的热塑性芳族聚碳酸酯模塑组合物，其包含有机或无机酸的碱金属盐和任选的全氟乙烯，其特征在于它们含有通式（I）或（II）的四卤代邻苯二甲酰亚胺或其混合物。 其中R表示氢原子或C1至C4烷基，C6H5，C10H7，C6H4X，C6H3X2或C6H2X3基团，其中X表示氟，氯或溴原子，R'表示单键或C2至C4亚烷基， C6H4或对二亚苯基，Z表示氯或溴原子。