Process for Improving Bulk Density with Multi-Contact Procatalyst and Product

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United States of America Patent

SERIAL NO

14002019

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Abstract

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Disclosed herein are processes for preparing procatalyst compositions which include multiple contact steps in the presence of a substituted phenylene aromatic diester and at least one other internal electron donor. The multi-contact procatalyst compositions produced from the present processes improve polymer properties and polymerization parameters. In particular, the present multi-contact procatalyst compositions improve polymer bulk density.

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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
Chen, Linfeng Missouri City, US 90 560
Coalter,, III Joseph N Lake Jackson, US 11 53
Williams, Clark C Lake Jackson, US 13 276

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