Patent ID: 8008412
Filing Date: 2011-08-30
Classification: C08F

Abstract:
1. A process to polymerize olefins comprising contacting propylene, at a temperature of 65° C. to 150° C. and a pressure between 1.72 MPa and 34.5 MPa, with: 1) a catalyst system comprising one or more activators and one or more nonmetallocene metal-centered, heteroaryl ligand catalyst compounds, where the metal is chosen from the Group 4, 5, 6, the lanthanide series, or the actinide series of the Periodic Table of the Elements, 2) 0 to 20 wt % of one or more comonomers (based upon the weight of all monomers and comonomers present in the feed) selected from the group consisting of ethylene and C4 to C12 olefins, 3) from 20 to 65 wt % diluent or solvent, based upon the total weight of the feeds to the polymerization reactor, and 4) 0 to 5 wt % scavenger, based upon the total weight of the feeds to the polymerization reactor, wherein: