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233 条记录 (耗时 0.023 秒)

    Carbonylation process
    72.
    发明授权
    Carbonylation process 失效
    羰基化过程

    公开(公告)号：US5344961A

    公开(公告)日：1994-09-06

    申请号：US70001

    申请日：1993-05-27

    申请人： Eit Drent

    发明人： Eit Drent

    IPC分类号： C07C45/49 ,  C07C67/36 ,  C07C69/76 ,  C07C51/10

    CPC分类号： C07C45/49 ,  C07C67/36

    摘要： An improved process for the carbonylation of aryl halides comprises contacting the aryl halide with carbon monoxide under carbonylation conditions in the presence of a co-reactant, a base, and a catalyst system formed from a source of palladium and a bidentate phosphine ligand wherein at least one monovalent phosphorus substituent is aromatic and is substituted on at least one aromatic ring carbon atom with an electron-withdrawing group.

    摘要翻译： 用于羰基化芳基卤化物的改进方法包括在羰基化条件下在共反应物，碱和由钯和二齿膦配体源形成的催化剂体系存在下使芳基卤化物与一氧化碳接触，其中至少 一个一价磷取代基是芳香族的，并且在至少一个芳族环碳原子上被吸电子基团取代。

    Catalyst compositions
    73.
    发明授权
    Catalyst compositions 失效
    催化剂组合物

    公开(公告)号：US5330952A

    公开(公告)日：1994-07-19

    申请号：US33214

    申请日：1993-03-18

    申请人： Eit Drent

    发明人： Eit Drent

    IPC分类号： C08G67/00 ,  C08G67/02 ,  B01J31/00 ,  B01J31/18 ,  B01J31/24

    CPC分类号： C08G67/02

    摘要： A novel catalyst composition containing a palladium salt, an anion of a non-hydrohalogenic acid with a pk.sub.a of less than 2, a phosphorus bidentate ligand and an acid with a pk.sub.a of at least 4 but less than 6. The catalyst composition effectively polymerizes carbon monoxide and at least one ethylenically unsaturated hydrocarbon to produce linear, alternating polymers.

    摘要翻译： 含有钯盐，pka低于2的非氢卤酸阴离子，磷二齿配体和pka至少为4但小于6的酸的新型催化剂组合物。催化剂组合物有效聚合碳 一氧化碳和至少一种烯属不饱和烃以产生线性交替聚合物。

    Polyketone polymer preparation in the absence of hydrogen
    75.
    发明授权
    Polyketone polymer preparation in the absence of hydrogen 失效
    聚酮聚合物在氢气制备中的制备

    公开(公告)号：US5227465A

    公开(公告)日：1993-07-13

    申请号：US906647

    申请日：1992-06-30

    申请人： Eit Drent

    发明人： Eit Drent

    IPC分类号： C08G67/00 ,  C08G67/02

    CPC分类号： C08G67/02

    摘要： A process for preparing low molecular weight polyketone polymers is described, wherein carbon monoxide is combined with ethene and/or propene and optionally in addition to one or more other .alpha.-olefins, by contacting the monomers in the absence of hydrogen with a catalyst containing a Group VIII metal and a tetra(sec-alkyl)bisphosphine ligand.

    Polymerization of CO/non-conjugated diolefin
    76.
    发明授权
    Polymerization of CO/non-conjugated diolefin 失效
    CO /非共轭二烯的聚合

    公开(公告)号：US5210176A

    公开(公告)日：1993-05-11

    申请号：US833202

    申请日：1992-02-10

    申请人： Eit Drent

    发明人： Eit Drent

    IPC分类号： C08G67/00 ,  C08G67/02

    CPC分类号： C08G67/02

    摘要： Novel polymers containing alternating units of carbon monoxide and units derived from non-conjugated diolefinic hydrocarbon are produced by contacting the carbon monoxide and non-conjugated diolefinic hydrocarbon under polymerization conditions in the presence of a catalyst composition formed from a compound of palladium, the anion of a strong non-hydrohalogenic acid and a bidentate ligand of phosphorus having only aliphatic monovalent phosphorus substituents.

    Polymerization of co/norbornene compound with molar ratio of n ligand to anion greater than 4
    77.
    发明授权
    Polymerization of co/norbornene compound with molar ratio of n ligand to anion greater than 4 失效
    CO / NORBENNENE化合物与N配子的摩尔比与ANION大于4的聚合

    公开(公告)号：US5177184A

    公开(公告)日：1993-01-05

    申请号：US833280

    申请日：1992-02-10

    申请人： Eit Drent

    发明人： Eit Drent

    IPC分类号： C08G67/00 ,  C08G67/02

    CPC分类号： C08G67/02

    摘要： An improved process for the production of linear alternating polymers of carbon monoxide and norbornene-type compounds wherein substantially all of the moieties originating from the carbon monoxide are in a spiroketal structure which comprises contacting the carbon monoxide and norbornene compound in a liquid reaction diluent at a temperature below 55.degree. C. in the presence of a catalyst composition formed from a compound of palladium, the anion of a non-hydrohalogenic acid having a pKa below 2, a bidentate ligand of nitrogen and an organic oxidant, the molar ratio of the bidentate ligand to the anion being at least 4.