Catalyst for the preparation of elastomeric ethylene-propylene copolymers
    8.
    发明授权
    Catalyst for the preparation of elastomeric ethylene-propylene copolymers 失效
    用于制备弹性体乙烯 - 丙烯共聚物的催化剂

    公开(公告)号:US5578540A

    公开(公告)日:1996-11-26

    申请号:US595451

    申请日:1996-02-05

    CPC分类号: C08F210/16

    摘要: Solid component of a catalyst for the synthesis of elastomeric Ethylene-Propylene copolymers typically amorphous, basically consisting of a Titanium compound supported on a solid component mainly consisting of MgCl.sub.2, prepared by a process which comprises putting a solution (I), basically consisting of an organometallic compound of Aluminium diluted with aliphatic hydrocarbons, in contact with a solution (II) containingan anhydrous Magnesium halide in a composition of solvents selected from halohydrocarbons and aromatic hydrocarbons and relative mixtures, in the presence of an Aluminium trihalide;a tetravalent Titanium compound having general formula Ti(OR).sub.4-n X.sub.n.

    摘要翻译: 用于合成弹性体乙烯 - 丙烯共聚物的固体组分通常是无定形的,基本上由负载在主要由MgCl 2组成的固体组分上的钛化合物组成,该方法包括将基本上由 在三卤化铝的存在下,用选自卤代烃和芳族烃的溶剂组合物中含有无水卤化镁的溶液(II)和相对混合物与脂族烃稀释的铝的有机金属化合物接触; 具有通式Ti(OR)4-nXn的四价钛化合物。

    Process for grafting maleic anhydride onto unsaturated polyolefinic
elastomers by mass reaction
    9.
    发明授权
    Process for grafting maleic anhydride onto unsaturated polyolefinic elastomers by mass reaction 失效
    通过质量反应将非水性非离子弹性体接枝到不稳定的聚烯烃弹性体上的方法

    公开(公告)号:US5153270A

    公开(公告)日:1992-10-06

    申请号:US387787

    申请日:1989-08-01

    摘要: Maleic anhydride is grafted onto unsaturated elastomeric terpolymers consisting of monomeric units coming from at least two different monomers having the formula R--CH.dbd.CH.sub.2 (R=hydrogen or an alkyl group containing from 1 to 6 carbon atoms) and from a conjugated or non-conjugated dienic monomer by mass reaction, which is carried out by heating at 120.degree.-350.degree. C. a mixture of said maleic anhydride with the terpolymer in the presence of a catalyst consisting of a compound having the formula:M.sub.n X.sub.zwherein:M=a metal of group VIII of the periodic system, and in particular Rh and Ru;X=a counterion,N=valence of the counterion; andZ=valence of the metal.

    Catalysts components and catalysts for the polymerization of olefins
    10.
    发明授权
    Catalysts components and catalysts for the polymerization of olefins 失效
    用于烯烃聚合的催化剂组分和催化剂

    公开(公告)号:US4529716A

    公开(公告)日:1985-07-16

    申请号:US530703

    申请日:1983-09-09

    CPC分类号: C08F10/00

    摘要: Catalyst components for the stereoregular polymerization of alpha-olefins, comprising a Ti halide and an electron-donor compound supported on an anhydrous magnesium dihalide and obtained by means of non-extractive treatments, with liquids having a dielectric constant at 20.degree. C. equal to or higher than 2, of compositions comprising an anhydrous Mg dihalide, the crystallites of which have an average size lower than 300 .ANG..The present invention refers to new catalyst components and the catalysts obtained therefrom for the polymerization of alpha-olefins Ch.sub.2 .dbd.CHR, wherein R is an alkyl radical with 1-4 C atoms or an aryl radical, and of mixtures of said alpha-olefins with minor amounts of ethylene.

    摘要翻译: 用于α-烯烃的立体规则聚合的催化剂组分,其包含负载在无水二卤化镁上的Ti卤化物和电子给体化合物,并通过非萃取处理获得,其介电常数在20℃等于 或高于2的包含无水Mg二卤化物的组合物,其微晶的平均尺寸低于300安培姆。 本发明涉及新的催化剂组分和由此获得的用于α-烯烃Ch 2 = CHR聚合的催化剂,其中R是具有1-4个C原子的烷基或芳基,和所述α-烯烃与 少量乙烯。