Procatalyst composition with alkoxyalkyl 2-propenoate internal electron donor and polymer from same

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United States of America Patent

PATENT NO 8536290
SERIAL NO

12974667

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Abstract

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Disclosed herein are catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present catalyst compositions contain an internal electron donor of an alkoxyalkyl 2-propenoate and optionally a mixed external electron donor. The present catalyst compositions improve catalyst selectivity and polymer stiffness. Polypropylene homopolymer produced from the present catalyst composition has a xylene solubles content less than 4 wt % and a TMF greater than 172.0° C.

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Patent Owner(s)

  • W. R. GRACE & CO.-CONN.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Linfeng Missouri City, US 88 527
Leung, Tak W Houston, US 37 325
Tao, Tao Houston, US 191 1609

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