Patent ID: 6054405
Filing Date: 2000-04-25
Classification: C08F,Y10S

Abstract:
A process for preparing a catalyst composition comprising mixing ofa) a fulvene of the formula: ##STR18## including oligomers thereof, wherein each R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is independently hydrogen, hydrocarbyl, or a heteroatom-containing group; and any two or more R groups may be joined to form a ring;b) a complex of the formula [L.sub.m MX.sub.n ].sub.r wherein each L is a neutral ligand, M is an atom selected from Groups 3 to 6 and the Lanthanides, each X is selected from the group consisting of alkoxide, amide, acetylacetonate, carbamate, amidate and aluminate anion, m is an integer of 0 or greater, n is an integer of 0 or greater, and r is an integer of 1 or greater; andc) an activating cocatalyst wherein the mixing takes place at a temperature between -80.degree. C. to 100.degree. C. a pressure between 0 to 500 psi for a duration of from about 0.1 seconds to 24 hours and where the concentration of each component (a), (b) and (c) is within the range of 1 mM to 10M.