会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Polymerization of ethylene
    • 乙烯聚合
    • US3899477A
    • 1975-08-12
    • US33325073
    • 1973-02-16
    • MONSANTO CO
    • ALTEMORE JOSEPH MORT MORRIS R
    • C08F110/02C08F1/52
    • C08F110/02C08F4/685
    • Ethylene polymers are made by bringing ethylene under polymerization conditions at low pressures into contact with a catalyst comprising a titanium halide, a vanadium halide and an organoaluminum compound. Molecular weight distribution of the polymers is controlled by reacting the titanium halide, the vanadium halide and the organoaluminum compound in such proportions that the Al/(Ti+V) ratio is between about 0.1 and 0.5 and admixing the resulting catalyst complex with a mixture of an alkylaluminum sesquiethoxide and a trialkylaluminum prior to contacting of ethylene therewith.
    • 通过在低压下的聚合条件下将乙烯与包含卤化钛,卤化钒和有机铝化合物的催化剂接触来制备乙烯聚合物。 聚合物的分子量分布通过使卤化钛,卤化钒和有机铝化合物以Al /(Ti + V)比为约0.1至0.5的比例反应来控制,并将得到的催化剂配合物与 在乙烯与乙烯接触之前的烷基铝倍半乙氧基化物和三烷基铝。