Process for the preparation of a polyolefin
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United States of America Patent
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Jul 2, 2002
Issued Date -
N/A
app pub date -
Apr 7, 1995
filing date -
Aug 17, 1990
priority date (Note) -
Expired
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Abstract
Olefins of the formula R.sup.11 --CH.dbd.CH--R.sup.12 (R.sup.11, R.sup.12 =H or C.sub.1 -C.sub.14 -alkyl) are polymerized in the presence of a catalyst consisting of at least one metallocene of the formula I ##STR1## (M=zirconium or hafnium) and an aluminoxane. Polymers having a high molecular weight are obtained in a high yield.
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