Patent ID: 8450436
Filing Date: 2013-05-28
Classification: C08F

Abstract:
1. An olefin polymerization process, the process comprising: contacting a catalyst composition with ethylene and an olefin comonomer under polymerization conditions to produce an ethylene polymer, wherein the catalyst composition comprises catalyst component I, catalyst component II, an activator-support, and an organoaluminum compound, wherein a molar ratio of catalyst component I to catalyst component II in the catalyst composition is in a range from about 6:1 to about 75:1; wherein an amount of the ethylene polymer produced per hour by the process is from about 10% to about 50% greater than an amount of an ethylene polymer obtained per hour under the same polymerization conditions without catalyst component II; wherein a melt index (MI) of the ethylene polymer produced by the process is from about 15% to about 80% less than a MI of an ethylene polymer obtained under the same polymerization conditions without catalyst component II; wherein catalyst component I comprises: formula (C) is wherein: M X E R Cp formula (D) is wherein: M X E R wherein catalyst component II comprises: a compound having the formula or any combination thereof, wherein: M X Cp E