Patent ID: 7163906
Filing Date: 2007-01-16
Classification: C08F

Abstract:
1. A catalyst composition comprising the contact product of at least one metallocene compound, at least one organochromium compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound, wherein: a) the at least one metallocene compound has the following formula: b) the at least one organochromium compound is a compound having the following formula: c) the at least one chemically-treated solid oxide comprises a solid oxide treated with at least one electron-withdrawing anion source compound; wherein the molar ratio of the at least one metallocene compound to the at least one organochromium compound is from about 100:1 to about 1:100; wherein the weight ratio of the at least one metallocene compound to the at least one chemically-treated solid oxide is from about 10:1 to about 0.0001:1; and wherein the catalyst composition is substantially free of aluminoxanes, organoborons, and ionizing ionic compounds.