Catalyst composition with phosphorus-based donor and method

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United States of America Patent

PATENT NO 8614162
SERIAL NO

13710975

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Abstract

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Disclosed are catalyst compositions having an external electron donor which includes one or more of the following compositions: a phosphite, a phosphonite, a pyrophosphite, and/or a diphosphazane. Ziegler-Natta catalyst compositions containing the present external electron donor exhibit strong activity and produce propylene-based olefins with high isotacticity and high melt flow rate.

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Patent Owner(s)

Patent OwnerAddress
W R GRACE & CO - CONN7500 GRACE DRIVE COLUMBIA MD 21044

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Coalter,, III Joseph N Katy, US 11 53

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