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Catalyst composition with halo-malonate internal electron donor and same-derived polymer
Catalyst composition with halo-malonate internal electron donor and same-derived polymer
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机译:具有卤代丙二酸酯内部电子给体和相同衍生的聚合物的催化剂组合物
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摘要
Disclosed herein are procatalyst compositions, catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present procatalyst compositions contain a halo-malonate and a 2-fluoro-malonate in particular. The present catalyst compositions improve catalyst selectivity, improve catalyst activity, and also improve hydrogen response during polymerization. Propylene-based polymer produced from the present catalyst composition has a melt flow rate greater than 50 g/10 min.
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