Patent ID: 7429634
Filing Date: 2008-09-30
Classification: C08F,Y02P,Y10S

Abstract:
1. A process to polymerize olefins comprising contacting, in a polymerization system, propylene monomers with: 1) a metallocene catalyst compound, 2) a non-coordinating anion activator, 3) optionally comonomer, and 4) from 0 to 25 wt % of diluent or solvent in the polymerization system, at a temperature above the cloud point temperature of the polymerization system to 160° C. and a pressure above the cloud point pressure of the polymerization system and between 15 and 150 MPa, where the polymerization system comprises the monomers, any comonomer present, any diluent or solvent present, and the polymer product, and where the propylene monomers are present in the polymerization system at 40 weight % or more, where the polymer produced has a melting point of 70 to 165° C., the polymer comprises less than 10 weight % of ethylene and the polymer has an Mw of 10,000 to 1,000,000.