Multinuclear metallocene compound, a process for its preparation and its use as catalyst
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United States of America Patent
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Jul 17, 2001
Grant Date -
N/A
app pub date -
Apr 26, 1996
filing date -
Apr 27, 1995
priority date (Note) -
Expired
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Abstract
The present invention relates to a metallocene compound containing at least two metallocene fragments L--MX.sub.2 --L which are different from one another and having the formula I ##STR1## where B is a bridging unit, m is an integer from 2 to 100,000, M is a metal atom of group IVb, Vb or VIb of the Periodic Table of the Elements, X are identical or different in one metallocene fragment L--MX.sub.2 --L and are each, independently of one another, hydrogen, a C.sub.1 -C.sub.40 -hydrocarbon-containing group, an OH group, a halogen atom or a pseudohalogen, L are identical or different in one metallocene fragment and are each, independently of one another, a .pi. ligand or another electron donor. The metallocene compound can advantageously be used as a catalyst component for olefin polymerization.
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