High melt flow polypropylene homopolymers for fiber applications
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United States of America Patent
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Jan 5, 2021
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Jul 13, 2017
app pub date -
Jan 12, 2016
filing date -
Jan 12, 2016
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Abstract
Disclosed herein are high melt flow polypropylene homopolymers generally characterized by a melt flow rate ranging from 200 g/10 min to 3000 g/10 min, a ratio of Mw/Mn ranging from 2 to 5, and a peak melting point ranging from 138° C. to 151° C. These polypropylene homopolymers can be produced by catalyst systems containing a racemic ansa-bis(indenyl)zirconocene compound, an activator-support, and an organoaluminum co-catalyst.
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