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    Associations of bases, resulting from the combination of a lithium alkyl or aryl with an alkali metal amide or hydride, polymerization process in which they are used, and product obtained
    4.
    发明授权
    Associations of bases, resulting from the combination of a lithium alkyl or aryl with an alkali metal amide or hydride, polymerization process in which they are used, and product obtained 失效
    由烷基或芳基与碱金属氨化物或氢化物的组合得到的碱的结合，使用它们的聚合方法和获得的产物

    公开(公告)号：US4535135A

    公开(公告)日：1985-08-13

    申请号：US544807

    申请日：1983-10-24

    申请人： Serge Lecolier ,  Serge Raynal

    发明人： Serge Lecolier ,  Serge Raynal

    IPC分类号： C08F4/00 ,  C07F1/00 ,  C08F2/00 ,  C08F4/42 ,  C08F4/46 ,  C08F4/48 ,  C08F4/56 ,  C08F36/04

    CPC分类号： C08F36/04 ,  C08F4/461 ,  C08F4/565

    摘要： The invention relates to new associations of strong bases, having the following general formula:n' RLi--n MZin which: n and n' are the numbers of mols of each compound, R is an alkyl or aryl radical, M is an alkali metal chosen from amongst lithium, sodium or potassium and Z is a hydride or an inorganic amide, the ratio n/n' being between 0.2 and 50.It is preferred to use bases in which the metal of the alkali metal amide or hydride is potassium or sodium. These associations are formed very rapidly and can be applied to anionic polymerization, in particular of conjugated dienes, in a solvent of low polarity or an apolar solvent.The polymers thus obtained contain a high percentage of 1,2 or 3,4 structures.

    摘要翻译： 本发明涉及强碱的新关联，具有以下通式：n'RLi-n MZ，其中：n和n'是每种化合物的摩尔数，R是烷基或芳基，M是碱 选自锂，钠或钾的金属，Z是氢化物或无机酰胺，n / n'的比例在0.2和50之间。优选使用其中碱金属酰胺或氢化物的金属为钾的碱 或钠。 这些缔合是非常迅速地形成的，并且可以在低极性溶剂或非极性溶剂中应用于阴离子聚合，特别是共轭二烯。 由此获得的聚合物含有高百分比的1,2或3,4个结构。

    Process for the synthesis of isocyanates and of isocyanate derivatives
    5.
    发明授权
    Process for the synthesis of isocyanates and of isocyanate derivatives 失效
    异氰酸酯和异氰酸酯衍生物的合成方法

    公开(公告)号：US4749806A

    公开(公告)日：1988-06-07

    申请号：US89338

    申请日：1987-08-25

    申请人： Igor Tkatchenko ,  Rabih Jaouhari ,  Michel Bonnet ,  Gordon Dawkins ,  Serge Lecolier

    发明人： Igor Tkatchenko ,  Rabih Jaouhari ,  Michel Bonnet ,  Gordon Dawkins ,  Serge Lecolier

    IPC分类号： C07C263/02 ,  C07C271/00 ,  C07C271/06 ,  C07C273/18 ,  C07C125/063 ,  C07C127/15

    CPC分类号： C07C263/00 ,  C07C269/02 ,  C07C273/1827 ,  C07D213/75

    摘要： The present invention relates to a process for the synthesis of isocyanates and of isocyanate derivatives. Isocyanates are obtained by reacting an organic halide with a metal cyanate in an organic medium in the presence of a catalyst consisting of a complex of nickel with at least one organic ligand, in which complex the nickel is in the zero oxidation state.A carbamate or a urea, respectively, are obtained by a subsequent reaction with a hydroxy compound or a primary or secondary amine.Isocyanates and their derivatives are used especially either as refined synthesis agents for the production of pesticides and medications, or as monomers or comonomers for the preparation of many macromolecular compounds.

    摘要翻译： 本发明涉及异氰酸酯和异氰酸酯衍生物的合成方法。 异氰酸酯是通过有机卤化物与金属氰酸酯在有机介质中，在由镍与至少一种有机配体的络合物组成的催化剂存在下反应得到的，其中镍处于零氧化态。 分别通过与羟基化合物或伯胺或仲胺反应获得氨基甲酸酯或脲。 异氰酸酯及其衍生物特别用作制备农药和药物的精制合成剂，或用作制备许多大分子化合物的单体或共聚单体。

    Associations of bases, resulting from the combination of a lithium alkyl or aryl with an alkali metal amide or hydride, polymerization process in which they are used, and product obtained
    8.
    发明授权
    Associations of bases, resulting from the combination of a lithium alkyl or aryl with an alkali metal amide or hydride, polymerization process in which they are used, and product obtained 失效
    由烷基或芳基与碱金属氨化物或氢化物的组合得到的碱的结合，使用它们的聚合方法和获得的产物

    公开(公告)号：US4435312A

    公开(公告)日：1984-03-06

    申请号：US340078

    申请日：1982-01-18

    申请人： Serge Lecolier ,  Serge Raynal

    发明人： Serge Lecolier ,  Serge Raynal

    IPC分类号： C08F4/00 ,  C07F1/00 ,  C08F2/00 ,  C08F4/42 ,  C08F4/46 ,  C08F4/48 ,  C08F4/56 ,  C08F36/04

    CPC分类号： C08F36/04 ,  C08F4/461 ,  C08F4/565

    摘要： The invention relates to new associations of strong bases, having the following general formula:n'RLi--n MZin which: n and n' are the numbers of mols of each compound, R is an alkyl or aryl radical, M is an alkali metal chosen from amongst lithium, sodium or potassium and Z is a hydride or an inorganic amide, the ratio n/n' being between 0.2 and 50.It is preferred to use bases in which the metal of the alkali metal amide or hydride is potassium or sodium. These associations are formed very rapidly and can be applied to anionic polymerisation, in particular of conjugated dienes, in a solvent of low polarity or an apolar solvent.The polymers thus obtained contain a high percentage of 1,2 or 3,4 structures.

    摘要翻译： 本发明涉及强碱的新关联，具有以下通式：n'RLi-n MZ，其中：n和n'是每种化合物的摩尔数，R是烷基或芳基，M是碱 选自锂，钠或钾的金属，Z是氢化物或无机酰胺，n / n'的比例在0.2和50之间。优选使用其中碱金属酰胺或氢化物的金属为钾的碱 或钠。 这些缔合形成非常迅速，可以在低极性溶剂或非极性溶剂中应用于阴离子聚合，特别是共轭二烯。 由此获得的聚合物含有高百分比的1,2或3,4个结构。