发明授权
- 专利标题： Process for producing polyolefins and polyolefin catalyst
- 专利标题（中）： 生产聚烯烃和聚烯烃催化剂的方法
-
申请号： US08459526申请日： 1995-06-02
-
公开(公告)号： US06541413B1公开(公告)日： 2003-04-01
- 发明人: Abbas Razavi , Guy L. G. Debras
- 申请人： Abbas Razavi , Guy L. G. Debras
- 优先权： EP93870064 19930407
- 主分类号： B01J3100
- IPC分类号： B01J3100
摘要：
The present invention provides a process for preparing polyolefins having a multimodal or at least bimodal molecular weight distribution by contacting in a reaction mixture under polymeriation conditions at least one olefin and a catalyst system comprising a supported catalyst-component comprising an alumoxane and at least two metallocenes containing the same transition metal and selected from the group consisting of mono, di, and tri-cyclopentadienyls and substituted cyclopentadienyls of a transition metal and wherein at least one of the metallocenes is bridged and at least one of the metallocenes is unbridged.
信息查询
