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212 条记录 (耗时 0.024 秒)

    Polycarbonates with alkylphenyl end groups, their preparation and their use
    62.
    发明授权
    Polycarbonates with alkylphenyl end groups, their preparation and their use 失效
    具有烷基苯基端基的聚碳酸酯，其制备及其用途

    公开(公告)号：US4269964A

    公开(公告)日：1981-05-26

    申请号：US75439

    申请日：1979-09-14

    申请人： Dieter Freitag ,  Werner Nouvertne ,  Claus Burkhardt ,  Frank Kleiner

    发明人： Dieter Freitag ,  Werner Nouvertne ,  Claus Burkhardt ,  Frank Kleiner

    IPC分类号： C08G63/00 ,  C08G64/00 ,  C08G64/04 ,  C08G64/14 ,  C08G64/20 ,  C08G8/28

    CPC分类号： C08G64/14

    摘要： This development is concerned with aromatic thermoplastic polycarbonates with special chain terminators which give the polymers enhanced hydrolysis resistance and impact toughness. These chain terminators are alkyl substituted monohydroxy phenyls in which each phenyl is substituted by one alkyl group having 8 or 9 carbon atoms and about 47 to 89% of its hydrogen atoms trisubstituted on carbon atoms with up to about 20% of the substituents in the ortho position and the balance at the para position. This development is also concerned with a process for synthesizing such polymers by using such chain terminators as reactants in generically known synthesis methods for polycarbonates.

    摘要翻译： 这种发展涉及具有特殊链终止剂的芳族热塑性聚碳酸酯，其赋予聚合物增强的耐水解性和冲击韧性。 这些链终止剂是烷基取代的单羟基苯基，其中每个苯基被一个具有8或9个碳原子的烷基取代，并且其在碳原子上三取代的氢原子的约47-89％，在邻位上具有高达约20％的取代基。 位置和对位的余额。 这种发展也涉及通过使用这种链终止剂作为一般已知的聚碳酸酯合成方法中的反应物合成这种聚合物的方法。

    High-molecular weight, segmented, polycarbonate elastomers
    65.
    发明授权
    High-molecular weight, segmented, polycarbonate elastomers 失效
    高分子量，分段，聚碳酸酯弹性体

    公开(公告)号：US4196276A

    公开(公告)日：1980-04-01

    申请号：US869743

    申请日：1978-01-16

    申请人： Manfred Schreckenberg ,  Klaus Konig ,  Dieter Freitag ,  Volker Serini

    发明人： Manfred Schreckenberg ,  Klaus Konig ,  Dieter Freitag ,  Volker Serini

    IPC分类号： C08G63/00 ,  C08G63/64 ,  C08G64/00 ,  C08G64/20 ,  C08G64/22 ,  C08G63/24

    CPC分类号： C08G63/64

    摘要： High-molecular weight polycarbonate elastomers are produced by reacting polymer segments having an average molecular weight (Mn) of more than 600 and carboxyl groups with diphenols and phosgene according to the two-phase boundary polycondensation process at a pH value between about 9 and about 14 and a temperature between about 0.degree. C. and 80.degree. C. and, thereafter, either heat-treating the resulting reaction products at temperatures between about 40.degree. C. and about 100.degree. C. or gelling the resulting reaction products in solution in organic solvents.

    摘要翻译： 高分子量聚碳酸酯弹性体是通过在约9和约14之间的pH值下，使平均分子量（Mn）大于600的聚合物链段和羧基与二酚和光气根据两相边界缩聚方法反应制备的 在约0℃至80℃之间的温度下，然后在约40℃至约100℃的温度下对所得反应产物进行热处理，或将所得反应产物在有机溶液中胶凝 溶剂。

    Hyperbranched oligomeric phosphonates and compositions including the same
    68.
    发明授权
    Hyperbranched oligomeric phosphonates and compositions including the same 有权
    超支化低聚膦酸酯及其组合物

    公开(公告)号：US08530044B2

    公开(公告)日：2013-09-10

    申请号：US13335146

    申请日：2011-12-22

    申请人： Lawino Kagumba ,  Jan-Pleun Lens ,  Dieter Freitag

    发明人： Lawino Kagumba ,  Jan-Pleun Lens ,  Dieter Freitag

    IPC分类号： B32B3/26 ,  B32B3/06

    CPC分类号： C08G59/1488 ,  C07F9/4006 ,  C08G18/388 ,  C08G59/304 ,  C08G79/02 ,  C08G79/04 ,  C08L63/00 ,  C08L75/04 ,  C08L85/02 ,  Y10T428/249953 ,  Y10T428/31692

    摘要： Disclosed are oligomeric phosphonates, and in particular, hyperbranched oligophosphonates, that include oligophosphonates, random or block co-oligo(phosphonate ester)s and co-oligo(phosphonate carbonate)s produced using a condensation process terminated with hydroxyl, epoxy, vinyl, vinyl ester, isopropenyl, isocyanate groups, and the like. These materials can be used as a reactive additive to other polymers, oligomers or monomer mixtures to impart flame resistance without diminishing melt processability which is important in the fabrication of polymers for many applications.

    摘要翻译： 公开了低聚膦酸盐，特别是超支化低聚膦酸盐，其包括使用以羟基，环氧，乙烯基，乙烯基封端的缩合方法制备的寡聚膦酸盐，无规或嵌段共 - 低聚（膦酸酯）和共 - 低聚（膦酸酯） 酯，异丙烯基，异氰酸酯基等。 这些材料可以用作其他聚合物，低聚物或单体混合物的反应性添加剂，以赋予阻燃性，而不会降低熔融加工性，这对于许多应用的聚合物的制造是重要的。

    DIARYL ALKYLPHOSPHONATES AND METHODS FOR PREPARING SAME
    70.
    发明申请
    DIARYL ALKYLPHOSPHONATES AND METHODS FOR PREPARING SAME 有权
    二烷基磷酸酯及其制备方法

    公开(公告)号：US20090203942A1

    公开(公告)日：2009-08-13

    申请号：US12029629

    申请日：2008-02-12

    申请人： Savvas Hadjikyriacou ,  Dieter Freitag

    发明人： Savvas Hadjikyriacou ,  Dieter Freitag

    IPC分类号： C07F9/06

    CPC分类号： C07F9/08 ,  C07F9/12 ,  C07F9/145 ,  C07F9/4006

    摘要： A method for preparing substantially pure optionally substituted diaryl alkylphosphonates from an optionally substituted triarylphosphite and an optionally substituted trialkylphosphite or an optionally substituted alkanol under special reaction conditions is described.

    摘要翻译： 描述了在特殊反应条件下从任选取代的亚磷酸三芳基酯和任选取代的三烷基亚磷酸酯或任选取代的烷醇制备基本上纯的任选取代的二芳基烷基膦酸酯的方法。