Metal organic catalysts for polymerizing unsaturated compounds
    1.
    发明授权
    Metal organic catalysts for polymerizing unsaturated compounds 有权
    用于聚合不饱和化合物的金属有机催化剂

    公开(公告)号:US06593437B1

    公开(公告)日:2003-07-15

    申请号:US09959382

    申请日:2001-10-24

    IPC分类号: C08F470

    摘要: A process for preparing 1,2-diimine compounds of the formula I where R1 and R2 are, independently of one another, alkyl, aryl or metallocenyl radicals, and R3, R4 are, independently of one another, H, alkyl or aryl radicals or R3 and R4 are joined so as to form, with inclusion of the two imine carbon atoms, a 5- to 8-membered ring which may be saturated or unsaturated and may be unsubstituted or substituted by any hydrocarbon radicals. The process involves reacting 1,2-dicarbonyl compounds with primary amines, which have been activated with trialkylaluminum compounds prior to the reaction with the 1,2-dicarbonyl compounds. 1,2-Diimine compounds of the formula I in which R1 and R2 are, independently of one another, metallocenyl radicals can be used to prepare metal complexes which can be used as catalysts in a process for the polymerization of unsaturated compounds.

    摘要翻译: 制备式I的1,2-二亚胺化合物的方法,其中R 1和R 2彼此独立地为烷基,芳基或金属茂基,且R 3,R 4彼此独立地为H,烷基或芳基或R 3 并且R4连接以形成包含两个亚胺碳原子的5-8元环,其可以是饱和或不饱和的,并且可以是未取代的或被任何烃基取代。 该方法包括使1,2-二羰基化合物与伯胺反应,伯胺在与1,2-二羰基化合物反应之前已用三烷基铝化合物活化。 其中R 1和R 2彼此独立地为金属茂基的式I的1,2-二亚胺化合物可用于制备可在不饱和化合物的聚合方法中用作催化剂的金属络合物。

    Catalysts for the polymerization of unsaturated compounds
    2.
    发明授权
    Catalysts for the polymerization of unsaturated compounds 有权
    用于不饱和化合物聚合的催化剂

    公开(公告)号:US07273940B2

    公开(公告)日:2007-09-25

    申请号:US10959212

    申请日:2004-10-07

    IPC分类号: C07D333/12

    摘要: Bisimine compounds of the formula (I) where the symbols have the following meanings: A is a nonmetal selected from among N, S, O and P, R1 is a radical of the formula NR5R6, R2 is a radical of the formula NR5R6 or NR7R8, alkyl, aryl or cycloalkyl, R5 and R6 together with the N atom form a 5-, 6- or 7-membered ring in which one or more of the —CH— or —CH2— groups may be replaced by suitable heteroatom groups and which may be saturated or unsaturated and unsubstituted or substituted or be fused with further carbacyclic or heterocarbacyclic 5- or 6-membered rings which may in turn be saturated or unsaturated and substituted or unsubstituted, and R7 and R8 are, independently of one another, alkyl, aryl or cycloalkyl radicals, and R3, R4 are, independently of one another, H or alkyl, aryl or cycloalkyl radicals, and n is 1 or 2, are used to prepare bisimidinato complexes which can be used in the polymerization of unsaturated compounds.

    摘要翻译: 式(I)的双亚胺化合物,其中符号具有以下含义:A是选自N,S,O和P的非金属,R 1是式NR的基团, 5,R 6,R 2是下式的基团NR 5 R 6或NR 6 烷基,芳基或环烷基,R 5和R 6以及N原子一起形成一个 5-,6-或7-元环,其中一个或多个-CH-或-CH 2 - 亚基可以被合适的杂原子基团取代,并且可以是饱和或不饱和和未取代的或 取代或与另外的碳环或杂碳环五或六元环稠合,其又可以是饱和的或不饱和的和取代或未取代的,R 7和R 8是 独立地为烷基,芳基或环烷基,R 3,R 4彼此独立地为H或烷基,芳基或环烷基,以及 n为1或2, 用于制备可用于不饱和化合物聚合的双嘧啶络合物。

    Continuous preparation of ethylene homopolymers or copolymers
    6.
    发明申请
    Continuous preparation of ethylene homopolymers or copolymers 有权
    连续制备乙烯均聚物或共聚物

    公开(公告)号:US20070123678A1

    公开(公告)日:2007-05-31

    申请号:US10577695

    申请日:2004-10-27

    IPC分类号: C08F110/02

    摘要: The invention relates to a process for the continuous preparation of ethylene homopolymers or copolymers in the presence of free-radical polymerization initiators and, if desired, molecular weight regulators at from 120° C. to 350° C. and pressures in the range from 100 to 4000 bar, in which the polymer is separated from unpolymerized ethylene in a high-pressure stage at a pressure of from 100 to 500 bar and at least one low-pressure stage at a pressure of from 1 to 100 bar and the ethylene separated off in the high-pressure stage is separated from remaining monomeric, oligomeric and/or polymeric constituents and recirculated to the inlet of the tube reactor in a high-pressure circuit and the ethylene separated off in the low-pressure stage is separated from remaining monomeric, oligomeric and/or polymeric constituents and recirculated to the inlet of the tube reactor in a low-pressure circuit. The initiator is used as a solution in an isoparaffinic solvent having a boiling point of not more than 160° C. and the solvent is separated from the other monomeric, oligomeric and/or polymeric constituents in the low-pressure circuit. The solvent is then, if appropriate after being admixed with fresh solvent, reused for dissolving initiator.

    摘要翻译: 本发明涉及一种在自由基聚合引发剂存在下连续制备乙烯均聚物或共聚物的方法,如果需要,本发明涉及120℃至350℃的分子量调节剂,并且在100 至4000巴,其中聚合物在100至500巴的压力和至少一个压力为1至100巴的压力下的高压阶段中与未聚合的乙烯分离,乙烯分离 在高压阶段与剩余的单体,低聚物和/或聚合物组分分离,并在高压回路中再循环到管式反应器的入口,并将在低压级分离的乙烯与剩余的单体, 低聚物和/或聚合物组分,并在低压回路中再循环到管式反应器的入口。 引发剂用作沸点不超过160℃的异链烷烃溶剂中的溶液,并将溶剂与低压回路中的其它单体,低聚物和/或聚合物成分分离。 如果在与新鲜溶剂混合后适当,溶剂再次用于溶解引发剂。

    Continuous preparation of ethylene homopolymers or copolymers
    10.
    发明授权
    Continuous preparation of ethylene homopolymers or copolymers 有权
    连续制备乙烯均聚物或共聚物

    公开(公告)号:US07737229B2

    公开(公告)日:2010-06-15

    申请号:US10577695

    申请日:2004-10-27

    IPC分类号: C08F2/00 C08F10/14

    摘要: The invention relates to a process for the continuous preparation of ethylene homopolymers or copolymers in the presence of free-radical polymerization initiators and, if desired, molecular weight regulators at from 120° C. to 350° C. and pressures in the range from 100 to 4000 bar, in which the polymer is separated from unpolymerized ethylene in a high-pressure stage at a pressure of from 100 to 500 bar and at least one low-pressure stage at a pressure of from 1 to 100 bar and the ethylene separated off in the high-pressure stage is separated from remaining monomeric, oligomeric and/or polymeric constituents and recirculated to the inlet of the tube reactor in a high-pressure circuit and the ethylene separated off in the low-pressure stage is separated from remaining monomeric, oligomeric and/or polymeric constituents and recirculated to the inlet of the tube reactor in a low-pressure circuit. The initiator is used as a solution in an isoparaffinic solvent having a boiling point of not more than 160° C. and the solvent is separated from the other monomeric, oligomeric and/or polymeric constituents in the low-pressure circuit. The solvent is then, if appropriate after being admixed with fresh solvent, reused for dissolving initiator.

    摘要翻译: 本发明涉及一种在自由基聚合引发剂存在下连续制备乙烯均聚物或共聚物的方法,如果需要,本发明涉及120℃至350℃的分子量调节剂,并且在100 至4000巴,其中聚合物在100至500巴的压力和至少一个压力为1至100巴的压力下的高压阶段中与未聚合的乙烯分离,乙烯分离 在高压阶段与剩余的单体,低聚物和/或聚合物组分分离,并在高压回路中再循环到管式反应器的入口,并将在低压级分离的乙烯与剩余的单体, 低聚物和/或聚合物组分,并在低压回路中再循环到管式反应器的入口。 引发剂用作沸点不超过160℃的异链烷烃溶剂中的溶液,并将溶剂与低压回路中的其它单体,低聚物和/或聚合物成分分离。 如果在与新鲜溶剂混合后适当,溶剂再次用于溶解引发剂。