Polymerization catalysts and process for producing bimodal...

Details Polymerization catalysts and process for producing bimodal... Polymerization catalysts and process for producing bimodal...

2007-12-25

2007-12-25

Wu, David W. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S114000, C526S113000, C526S160000, C526S170000, C526S126000, C526S127000, C526S129000, C526S130000, C526S348200, C526S348600, C526S351000, C526S352000, C526S943000, C502S103000

Reexamination Certificate

active

11209006

ABSTRACT:
Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. Methods for preparing and using such catalysts to produce polyolefins are also provided. The compositions and methods disclosed herein provide ethylene polymers having a HLMI of from about 0.5 to about 25, a polymer density of from about 0.920 to about 0.965, and a polydispersity of from about 3.0 to about 30.

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