Catalyst components for the polymerization of olefins
    12.
    发明授权
    Catalyst components for the polymerization of olefins 失效
    用于烯烃聚合的催化剂组分

    公开(公告)号:US07208436B2

    公开(公告)日:2007-04-24

    申请号:US10517587

    申请日:2003-05-19

    IPC分类号: C08F4/42

    摘要: Catalyst components for the polymerization of olefins CH2═CHR, wherein R is hydrogen or a hydrocarbon radical having 1–12 carbon atoms, comprising Mg, Ti, Cl, OR groups, where R is a C1–C10 alkyl group optionally containing heteroatoms, and an ether having two or more ether groups, characterized by the fact that the Mg/Ti weight ratio is lower than 3 from 2 to 6.5 the Cl/Ti weight ratio is from 1.5 to 6, the OR/Ti weight ratio is from 0.5 to 3.5 and at least 50% of the Titanium atoms are in a valence state lower than 4. The said catalyst components allow the preparation of ethylene copolymers with a low content of xylene soluble fractions.

    摘要翻译: 用于烯烃CH 2 -CHR的聚合的催化剂组分,其中R是氢或具有1-12个碳原子的烃基,其包含Mg,Ti,Cl,OR基团,其中R是C1- 任选含有杂原子的C10烷基和具有两个或更多个醚基的醚,其特征在于Mg / Ti重量比低于3的值为2至6.5,Cl / Ti重量比为1.5至6,OR / Ti重量比为0.5-3.5,并且至少50%的钛原子处于低于4的价态。所述催化剂组分允许制备低二甲苯可溶组分含量的乙烯共聚物。

    Process for preparing elastomeric ethylene copolymers
    17.
    发明授权
    Process for preparing elastomeric ethylene copolymers 失效
    制备弹性乙烯共聚物的方法

    公开(公告)号:US5532326A

    公开(公告)日:1996-07-02

    申请号:US341441

    申请日:1994-11-14

    CPC分类号: C08F210/02 Y10S526/901

    摘要: Process for preparing elastomeric copolymers of ethylene with .alpha.-olefins CH.sub.2 .dbd.CHR, optionally containing minor proportions of a diene, characterized by the use during the polymerization of a catalyst comprising the reaction product of:(I) a solid component comprising VCl.sub.3 supported on a magnesium dihalide in spherical or spheroidal shape, in active form;(II) an alkyaluminum compound;(III) optionally a halohydrocarbon.VCl.sub.3 is precipitated on said magnesium dihalide by heating VCl.sub.4 solutions in inert hydrocarbon solvents.

    摘要翻译: 制备乙烯与α-烯烃CH2 = CHR的弹性体共聚物的方法,任选地含有少量的二烯,其特征在于在聚合催化剂期间使用的催化剂,其包含以下反应产物:(I)包含负载在 活性形式的球形或球状二卤化镁; (II)烷基铝化合物; (III)任选的卤代烃。 VCl 3通过在惰性烃溶剂中加热VCl 4溶液沉淀在所述二卤化镁上。