Olefin polymerization catalyst components and process for the production of olefin polymers therewith
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United States of America Patent
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Nov 14, 2017
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Oct 14, 2016
filing date -
Oct 14, 2016
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Abstract
The present invention relates to a Ziegler-Natta catalyst component for olefin polymerization containing a urea element in combination with one or more internal electron donors. The catalyst components are able to produce polypropylene polymers with higher stereo-regularity. The present invention also provides phthalate-free catalyst system capable of producing polypropylene with an isotacticity that is equal to or higher than catalyst systems containing phthalate derivatives.
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