Patent ID: 7279536
Filing Date: 2007-10-09
Classification: C07F,C08F,Y02P,Y10S

Abstract:
1. A process to polymerize olefins comprising contacting, in a polymerization system, olefin monomers having three or more carbon atoms with: 1) a metallocene catalyst compound, 2) an activator, 3) optionally comonomer, and 4) optionally diluent or solvent, at a temperature above the cloud point temperature of the polymerization system and a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system and less than 1000 MPa, where the polymerization system comprises the monomers, any comonomer present, any diluent or solvent present, and the polymer product, and where the olefin monomers are present in the polymerization system at 40 weight % or more, wherein the metallocene catalyst compound is represented by the formula: where M is a transition metal selected from group 4 of the periodic table; each R each R R R a is 0, 1 or 2; R b is 0, 1 or 2; R each R each R each R c is 0, 1 or 2; R d is 0, 1, or 2; each R e is 0, 1, or 2; where the sum of c, d, and e is 1, 2 or 3; R R f is 0, 1 or 2; R g is 0, 1 or 2; and R