Patent ID: 6531550
Filing Date: 2003-03-11
Classification: C08F,Y10S

Abstract:
A process of using a catalyst composition to polymerize at least one monomer to produce a polymer, said process comprising contacting said catalyst composition with at least one monomer in a polymerization zone to produce said polymer;wherein said catalyst composition is produced by a process comprising contacting at least one organometal compound, at least one solid mixed oxide compound, and at least one organoaluminurn compound to produce said catalyst composition, wherein said organometal compound has the following general formula (X1)(X2)(x3)(X4)M1 wherein M1 is selected from the group consisting of titanitu, zirconium, and hafnium, and wherein (X1) is independently selected from the group consisting of cycloperitadienyls, indenyls, fluorenyls, substituted cyclopentadienyls, substituted indenyls, and substituted fluoronyls, and wherein said substituents, on said substituted cyclopentadienyls, substituted indenyls, and substituted fluorenyls, are selected from the group consisting of aliphatic groups, cyclic groups, combinations of aliphatic and cyclic groups, and organometallic groups; and wherein (X3) and (X4) are independently selected from the group consisting of halides, aliphatic groups, cyclic groups, combinations of aliphatic groups and cyclic groups, and organometallic groups, and wherein (X2) is selected from the group consisting of Group OMC-I and Group OMC-II; wherein said organoaluminum compound has the general formula, Al(X5)n(X6)3-n wherein (X5) is a hydrocarbyl having from 1-20 carbon atoms, and wherein (X6) is a halide, hydride, or alkoxide, and wherein â€œnâ€  is a number from 1 to 3 inclusive; and wherein said solid mixed oxide compound is produced by a process comprising: 1) dissolving aluminum nitrate nonahydrate, boric acid, arid zirconyl nitrate dihydrate in deonized water to form a first mixture; 2) contacting said first mixture with ammonium hydroxide to produce a gel; 3) washing and drying said gel at 100Â° C. to produce a dried gel; 4) grinding said dried gel through a 35 mesh screen; 5) calcining said dried gel at room temperature of 600Â° C. to produce a solid mixed oxide compound; and wherein there is an absence of borate compounds and aluminoxanes in said composition.