Branched aromatic polyaryl-ether sulphones
    2.
    发明授权
    Branched aromatic polyaryl-ether sulphones 失效
    支链芳香聚醚醚砜

    公开(公告)号:US3960815A

    公开(公告)日:1976-06-01

    申请号:US437643

    申请日:1974-01-29

    IPC分类号: C08G75/20 C08G75/23

    CPC分类号: C08G75/23 C08G75/20

    摘要: A branched, high molecular-weight polyaryl-ether sulphone which is the reaction product of approximately equimolar amounts of an aromatic dialkali metal bishydroxylate and a bis-(halogen-aryl) compound, whose aryl nuclei are linked by sulphonyl groups, and about 0.01 to about 2 mol %, based on the bishydroxylate or bis-(4-halogenaryl) compound, of an aromatic compound having at least three aromatically linked alkali metal hydroxylate substitutents and/or of a halogenaryl compound having at least three aryl-linked halogen substituents and which is capable of substitution under the reaction conditions of polyaryl-ether sulphone manufacture.

    摘要翻译: 作为大约等摩尔量的芳族二碱金属双羟基苯甲酸酯和双(卤素 - 芳基)化合物的反应产物的支链高分子量聚芳基醚砜,其芳基核子通过磺酰基连接,并且约0.01至 基于二氯化物或双 - (4-卤代芳基)化合物的具有至少三个芳族化合物的碱金属羟基化物取代基的芳族化合物和/或具有至少三个芳基连接的卤素取代基的卤素芳基化合物的约2摩尔% 其能够在聚芳基醚砜制造的反应条件下进行取代。

    Catalyst, its production and its use for the gas-phase polymerization of
conjugated dienes
    3.
    发明授权
    Catalyst, its production and its use for the gas-phase polymerization of conjugated dienes 失效
    催化剂,其制备及其在共轭二烯气相聚合中的应用

    公开(公告)号:US5858903A

    公开(公告)日:1999-01-12

    申请号:US933597

    申请日:1997-09-18

    摘要: Catalysts consisting ofA) an alcoholate of the rare earths, a carboxylate of the rare earths, a complex compound of the rare earths with diketones and/or an addition compound of the halides of the rare earths with an oxygen or nitrogen donor compound,B) an aluminium trialkyl, a dialkyl aluminium hydride and/or an alumoxane,C) another Lewis acid andD) an inert, particulate inorganic solid with a specific surface of greater than 10 m.sup.2 /g (BET) and a pore volume of 0.3 to 15 ml/gare eminently suitable for the polymerization of conjugated dienes, more particularly butadiene, in the gas phase.

    摘要翻译: 由以下组成的催化剂:A)稀土的醇化物,稀土的羧酸盐,稀土与二酮的络合物和/或稀土卤化物的加成化合物与氧或氮给体化合物B, )三烷基铝,二烷基氢化铝和/或铝氧烷,C)另一种路易斯酸和D)比表面积大于10m 2 / g(BET)的惰性颗粒状无机固体,孔体积为0.3〜 15ml / g非常适合在气相中共轭二烯,更特别是丁二烯的聚合。

    Process for the production of phosphoric acid triesters
    6.
    发明授权
    Process for the production of phosphoric acid triesters 失效
    磷酸三酯生产工艺

    公开(公告)号:US4267127A

    公开(公告)日:1981-05-12

    申请号:US60679

    申请日:1979-07-25

    IPC分类号: C07F9/12 C07F9/09

    CPC分类号: C07F9/12

    摘要: Phosphoric acid triesters of the formula ##STR1## are produced in two or more stages by reacting phosphorus oxyhalides, phosphorus pentahalides, phosphoric acid monoester dihalides or phosphoric acid diester halides corresponding to the following general formula:ZO PO Hal.sub.2 (ZO).sub.2 PO Halwherein Z is defined as above and Hal represents Cl and/or Br with at least one hydroxyaryl compound of the formula ##STR2## in a two-phase mixture of an organic solvent an aqueous alkaline earth metal and/or alkali metal hydroxide solution.

    摘要翻译: 通过使对应于以下通式的ZO PO Hal 2(ZO)2 PO Hal的卤代卤磷,五卤化磷,五氟化五磷酸,磷酸二酯二卤化物或磷酸二酯卤化物反应制备式“IMAGE”的磷酸三酯,其中Z 定义如上,Hal表示Cl和/或Br与至少一种式“IMAGE”的羟基芳基化合物在有机溶剂碱土金属水溶液和/或碱金属氢氧化物溶液的两相混合物中。

    Polycarbonates with end groups containing double bonds which can be
crosslinked by UV light
    7.
    发明授权
    Polycarbonates with end groups containing double bonds which can be crosslinked by UV light 失效
    具有端基的聚碳酸酯含有双键,其可以通过UV光交联

    公开(公告)号:US4221645A

    公开(公告)日:1980-09-09

    申请号:US50899

    申请日:1979-06-21

    摘要: High molecular weight aromatic polycarbonates having molecular weights M.sub.w (weight average) of between about 10,000 and 200,000, which are based on diphenols and monofunctional chain stoppers, which correspond to the general formula ##STR1## in which Z denotes the radical of a diphenol,n denotes an integer from 20 to 400,E denotes ##STR2## m is 0 or 1 and R denotes a hydrogen atom or a C.sub.1 to C.sub.3 alkyl group, and in which between about 0.5 and 5 mol % of Z are radicals of aromatic dihydroxyketones. These polycarbonates share mechanical and thermal properties with known polycarbonates but in addition are suitable for crosslinking, for example in the presence of photoinitiators and optionally photo-reducing agents and under irradiation with UV light. When crosslinked they are resistant to organic solvents and insensitive to stress-cracking, and have particularly good flame-repellent properties when additionally incorporating flameproofing agents.

    摘要翻译: 分子量Mw(重均分子量)在10,000和200,000之间的高分子量芳族聚碳酸酯,它们基于二酚和单官能链终止剂,其对应于通式(I),其中Z表示 二苯酚,n表示20〜400的整数,E表示m为0或1,R表示氢原子或C1〜C3烷基,其中约0.5〜5摩尔%的Z为 芳族二羟基酮。 这些聚碳酸酯与已知的聚碳酸酯共享机械和热性能,但另外适用于交联,例如在光引发剂和任选的光还原剂的存在下,并且在用UV光照射下。 当交联时,它们对有机溶剂具有耐受性并且对应力开裂不敏感,并且当额外加入防火剂时具有特别好的阻燃性能。