发明名称 |
Process for the preparation of an olefin polymer using metallocenes having specifically substituted indenyl ligands |
摘要 |
A very active catalyst system for olefin polymerization comprises a cocatalyst, preferably an aluminoxane, and a metallocene of the formula I or Ia (* CHEMICAL STRUCTURE *) in which, preferably, M1 is Zr or Hf, R1 and R2 are alkyl or halogen, R3 and R4 are hydrogen or alkyl, R5 and R6 are alkyl, -(CR8R9)m-R7-(CR8R9)n is a chain with one or more members, in which R7 can also be a (substituted) heteroatom, and m+n is zero or 1.
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申请公布号 |
US5304614(A) |
申请公布日期 |
1994.04.19 |
申请号 |
US19920960893 |
申请日期 |
1992.10.14 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
WINTER, ANDREAS;ANTBERG, MARTIN;DOLLE, VOLKER;ROHRMANN, JUERGEN;SPALECK, WALTER |
分类号 |
C08F4/622;C08F4/60;C08F4/64;C08F4/642;C08F4/659;C08F4/6592;C08F10/00;(IPC1-7):C08F4/42 |
主分类号 |
C08F4/622 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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