Compositions that can produce polymers

A composition of matter consisting essentially of 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
• (X1)(X2)(X3)(X4)M1,
• wherein
• M1 is selected from titanium, zirconium;
• or hafnium;
• (X1) is a cyclopentadienyl, an indenyl, a fluorenyl, a substituted cyclopentadienyl, a substituted indenyl, or a substituted fluorenyl;
• (X3) and (X4) are independently a halide, an aliphatic group, a cyclic group, a combination of aliphatic and cyclic groups, or an organometallic group;
• (X2) 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;
• (X1) and (X2) 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(X5)n(X6)3-n,
• wherein
• (X5) is a hydrocarbyl having from 1-20 carbon atoms;
• (X6) is a halide, hydride, or alkoxide;
• and
• “n” is a number from 1 to 3 inclusive;
• and
• 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.

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
• (X1)(X2)(X3)(X4)M1,
• wherein
• M1 is selected from titanium, zirconium, or hafnium;
• (X1) is a cyclopentadienyl, an indenyl, a fluorenyl, a substituted cyclopentadienyl, a substituted indenyl, or a substituted fluorenyl;
• (X3) and (X4) are independently a halide, an aliphatic group, a cyclic group, a combination of aliphatic and cyclic groups, or an organometallic group;
• (X2) 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;
• (X1) and (X2) 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(X5)n(X6)3-n,
• wherein
• (X5) is a hydrocarbyl having from 1-20 carbon atoms;
• (X6) is a halide, hydride, or alkoxide;
• and
• “n” 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 the composition has an ethylene polymerization activity of greater than 100 gP/(gS·hr) measured under slurry polymerization conditions using isobutane as a diluent, at a polymerization temperature of about 90° C., at an ethylene pressure of about 550 psig, and in the substantial absence of aluminoxanes and borate compounds.