- 专利标题： Metallocenes containing ligands of 2-substituted indenyl derivatives, process for their preparation, and their use as catalysts
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申请号： US08895950申请日： 1997-07-17
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公开(公告)号： USRE39561E1公开(公告)日： 2007-04-10
- 发明人: Andreas Winter , Martin Antberg , Walter Spaleck , Jürgen Rohrmann , Volker Dolle
- 申请人： Andreas Winter , Martin Antberg , Walter Spaleck , Jürgen Rohrmann , Volker Dolle
- 申请人地址： DE
- 专利权人： Basell Polyoefine GmbH
- 当前专利权人： Basell Polyoefine GmbH
- 当前专利权人地址： DE
- 代理机构： Connolly Bove Lodge & Hutz
- 优先权： DE4035884 19901112
- 主分类号： C07F7/28
- IPC分类号： C07F7/28 ; C07F9/00 ; C07F11/00
摘要：
The novel metallocenes of the formula I in which, preferably, M1 is Zr or Hf, R1 and R2 are alkyl or halogen, R3 and R4 are hydrogen, R5 and R6 are alkyl or haloalkyl, —(CR8R9)m—R7—(CR8R9)n— is a single- or multi-membered chain in which R7 may also be a (substituted) hetero atom, m+n is zero or 1, and R10 is hydrogen, form, together with aluminoxanes as cocatalysts, a very effective catalyst system for the preparation of polyolefins of high stereospecificity and high melting point.