CATALYST COMPOSITION FOR POLYOLEFIN POLYMERS
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United States of America Patent
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Issued Date -
Jul 14, 2022
app pub date -
Sep 16, 2020
filing date -
Sep 18, 2019
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Abstract
A Ziegler-Natta catalyst composition is disclosed. The catalyst composition is formed from a procatalyst containing a magnesium moiety and a titanium moiety. At least one internal electron donor is incorporated into the procatalyst. During a titanation procedure in conjunction with the internal electron donor, a titanium extractant is used to remove or deactivate low activity or atactic titanium active sites.
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