Process for the preparation of polyolefins
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United States of America Patent
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Sep 6, 1988
Grant Date -
N/A
app pub date -
Nov 25, 1985
filing date -
Nov 27, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In the polymerization of propylene and other higher 1-olefins, polymers which have a high degree of isotacticity and a narrow distribution of molecular weight are obtained in the presence of a catalyst system composed of a zirconium compound which is stereo-rigid and chiral and a linear or cyclic aluminoxane. In addition, the catalyst system is exceptionally active.
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