Patent ID: 6887819

Claim:
A composition of matter comprising a contact product of at least one solid mixed oxide compound, at least one organometal compound, and at least one organoaluminum compound, wherein the organometal compound has the following general formula (X 1 )(X 2 )(X 3 )(X 4 )M 1 , wherein M 1 is selected from titanium, zirconium, or hafnium; (X 1 ) is a cyclopentadienyl, an indenyl, a fluorenyl, a substituted cyclopentadienyl, a substituted indenyl, or a substituted fluorenyl; (X 3 ) and (X 4 ) are independently a halide, an aliphatic group, a cyclic group, a combination of aliphatic and cyclic groups, or an organometallic group; (X 2 ) is a cyclopentadienyl, an indenyl, a flourenyl, a substituted cyclopentadienyl, a substituted indenyl, a substituted fluorenyl, a halide, an aliphatic group, a cyclic group, a combination of aliphatic and cyclic groups, or an organometallic group; (X 1 ) and (X 2 ) are optionally joined by an aliphatic bridging group, a cyclic bridging group, a combination of aliphatic and cyclic bridging groups, or an organometallic bridging group; and the substituents on the substituted cyclopentadienyls, substituted indenyls and substituted fluorenyls are independently an aliphatic group, a cyclic group, a combination of aliphatic and cyclic groups, an organometallic group, or hydrogen; wherein the organoaluminum compound has the following general formula AL(X 5 ) n (X 6 ) 3-n , wherein (X 5 ) is a hydrocarbyl having from 1-20 carbon atoms; (X 6 ) is a halide, hydride, or alkoxide; and â€œnâ€ is a number from 1 to 3 inclusive; wherein the solid mixed oxide compound comprises a mixed oxide of at least two elements of group 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 of the periodic table, including lanthanides and actinides; and wherein there is a substantial absence of aluminoxanes and borate compounds.