Continuous process for the telomerization of conjugated dienes
    1.
    发明授权
    Continuous process for the telomerization of conjugated dienes 失效
    用于共轭二烯的调聚的连续方法

    公开(公告)号:US5254782A

    公开(公告)日:1993-10-19

    申请号:US768541

    申请日:1991-08-16

    CPC分类号: C07C41/06

    摘要: Continuous process for the telomerization of conjugated dienes comprising reacting a conjugated diene with a compound containing an active hydrogen atom in the liquid phase in the presence of a Group VIII transition metal catalyst, a ligand compound of a tertiary phosphorous, arsenic or antimony, and a catalyst promoter compound having basic properties.

    摘要翻译: PCT No.PCT / EP90 / 02263 371日期1991年8月16日 102(e)日本1991年8月16日PCT 1990年12月21日PCT PCT。共轭二烯调聚的连续方法,包括在VIII相存在下使共轭二烯与含有活性氢原子的化合物在液相中反应 过渡金属催化剂,三级磷的配位化合物,砷或锑,以及具有碱性的催化剂促进剂化合物。

    Supported polymerisation catalysts
    2.
    发明授权
    Supported polymerisation catalysts 有权
    负载型聚合催化剂

    公开(公告)号:US07678726B2

    公开(公告)日:2010-03-16

    申请号:US10568954

    申请日:2004-08-04

    摘要: A supported polymerization catalyst system is prepared by a method comprising the following steps: (i) addition of a cocatalyst to a porous support, (ii) mixing a polymerisation catalyst with a polymerisable monomer, and (iii) contacting together the components resulting from steps (i) and (ii). The porous support is preferably silica and the polymerisation catalyst is preferably a metallocene. The polymerisable monomer is typically 1-hexene and the supported catalyst system provides advantages a slowly decaying activity profile particularly when operating in the gas phase.

    摘要翻译: 通过包括以下步骤的方法制备负载型聚合催化剂体系:(i)向多孔载体中加入助催化剂,(ii)将聚合催化剂与可聚合单体混合,和(iii)将由步骤 (i)和(ii)。 多孔载体优选为二氧化硅,聚合催化剂优选为金属茂。 可聚合单体通常是1-己烯,并且负载的催化剂体系特别是当在气相中操作时,具有缓慢衰变的活性分布的优点。

    Ethylene copolymer compositions
    6.
    发明授权
    Ethylene copolymer compositions 失效
    乙烯共聚物组合物

    公开(公告)号:US06506866B2

    公开(公告)日:2003-01-14

    申请号:US08857816

    申请日:1997-05-16

    IPC分类号: C08F21002

    摘要: Disclosed is a novel ethylene copolymer by copolymerizing an ethylene and at least one comonomer selected from a compound represented by the formula H2C═CHR wherein R is an alkyl group or an aryl group, and a diene, by slurry polymerization process in the presence of a solid catalyst system comprising a support, a transition metal compound and an activator capable of converting the transition metal compound into a catalytically active transition metal complex. The produced copolymer has a density of from 0.870 to 0.980 and a molecular weight distribution (Mw/Mn) of from 3 to 10, and exhibiting GPC/FT-IR characteristics and CFC characteristics, both of which define a comonomer content distribution, wherein, in one aspect, the lower the molecular weight of a copolymer fraction in a molecular weight distribution of an ethylene copolymer, the lower the comonomer content of the copolymer fraction; and, in the other aspect, the higher the molecular weight of a copolymer fraction, the higher the comonomer content of the copolymer fraction, so that ethylene copolymer exhibits high impact strength and excellent ESCR properties. Further, the ethylene copolymer contains substantially no impurites such as a wax, a gel and the like. Thus, the ethylene copolymer and blend compositions therefrom can be advantageously used for the production of film, fibers, foams or sheets including blown film, cast films, laminate films, blow-molded articles, injection molded articles, pipes, coating materials for cables, and the like.

    摘要翻译: 公开了一种新型乙烯共聚物,其通过在存在下通过淤浆聚合方法将乙烯和至少一种选自式H2C = CHR表示的化合物(其中R为烷基或芳基)和二烯的共聚单体共聚 固体催化剂体系,其包括载体,过渡金属化合物和能够将过渡金属化合物转化为催化活性的过渡金属络合物的活化剂。 制得的共聚物的密度为0.870〜0.980,分子量分布(Mw / Mn)为3〜10,表现出GPC / FT-IR特性和CFC特性,均为共聚单体含量分布, 在一个方面,共聚物部分在乙烯共聚物的分子量分布中的分子量越低,共聚物部分的共聚单体含量越低; 而在另一方面,共聚物部分的分子量越高,共聚物部分的共聚单体含量越高,使得乙烯共聚物表现出高的冲击强度和优异的ESCR性能。 此外,乙烯共聚物基本上不含蜡,凝胶等等。 因此,乙烯共聚物及其共混组合物可有利地用于制造膜,纤维,泡沫或片材,包括吹塑薄膜,流延薄膜,层压薄膜,吹塑制品,注塑制品,管道,电缆用涂料, 等等。