Catalyst and process for the preparation of polyethylenes having a narrow molecular-weight distribution
    1.
    发明授权
    Catalyst and process for the preparation of polyethylenes having a narrow molecular-weight distribution 失效
    用于制备具有窄分子量分布的聚乙烯的催化剂和方法

    公开(公告)号:US3755274A

    公开(公告)日:1973-08-28

    申请号:US3755274D

    申请日:1972-05-16

    摘要: A catalyst for the production of polyethylene and modified polyethylene having a narrow molecular weight distribution comprising the reaction product of (A) a reaction product of one mol of trialkyl aluminum having from two to eight carbon atoms in each of the alkyls with from one to two mols of a polysiloxane having a viscosity of from 5 to 100 cSt (25*C) and monomer units having the formula

    WHERE R is alkyl having one to six carbon atoms, cycloalkyl or aryl and (B) a compound of the formulae

    摘要翻译: 用于生产具有窄分子量分布的聚乙烯和改性聚乙烯的催化剂包括(A)在每个烷基中具有2至8个碳原子的1摩尔三烷基铝的反应产物与1至2的反应产物 具有粘度为5至100cSt(25℃)的聚硅氧烷的摩尔数和式WHERE R为具有1至6个碳原子的烷基的单体单元,环烷基或芳基和(B)式TiX4-n的化合物 (OR')n,VOX 3-n(OR')n和VX 4-n(OR')n其中X是卤素,R'是具有1-8个碳原子的烷基或环烷基,n具有在0.1和2之间的值 ,或所述化合物的混合物,以及利用所述反应产物催化剂制备具有窄分子量分布的聚乙烯和改性聚乙烯的方法。