Olefin polymerization catalysts and processes for making and using same
    5.
    发明授权
    Olefin polymerization catalysts and processes for making and using same 有权
    烯烃聚合催化剂及其制备和使用方法

    公开(公告)号:US06506704B1

    公开(公告)日:2003-01-14

    申请号:US09274378

    申请日:1999-03-23

    IPC分类号: B01J3100

    CPC分类号: C07F15/045 C08F10/00 C08F4/80

    摘要: A process for forming neutral late transition metal chelates useful as polymerization catalysts comprising contacting a bidentate ligand forming compound that is free of electron-withdrawing groups with a di(tertiary amine) late transition metal reagent in the presence of an inert liquid, an olefinic monomer or a polar liquid selected from nitrites, ethers, aromatic heterocyclic amines, alcohols, nitroalkanes, nitroaromatics or mixtures thereof. The process provides a solid product or a solution of a storage stable transition metal bidentate ligand containing catalyst product which remains active for an extended storage period. Alternately, the present process can be conducted in situ in a polymerization zone of olefinic polymerization.

    摘要翻译: 一种形成用作聚合催化剂的中性晚期过渡金属螯合物的方法,包括在惰性液体存在下,将不含吸电子基团的二齿配体形成化合物与二(叔胺)后过渡金属试剂接触,将烯属单体 或选自亚硝酸盐,醚,芳族杂环胺,醇,硝基烷烃,硝基芳族化合物或其混合物的极性液体。 该方法提供固体产物或储存稳定的过渡金属二齿配位体催化剂产物的溶液,其在延长的储存期间保持活性。 或者,本方法可以在烯烃聚合的聚合区中原位进行。