Diketonate complex-derived catalysts useful for preparing polyolefins

摘要

An olefin polymerization catalyst may be prepared using a process including contacting a metal compound of the formula M(OR₁)₂ with a diketone to form a catalyst precursor having the general formula: wherein M is a Group IIA metal; O is oxygen; n=1 or 2; R₁, R₂, R₃, and R₄ are the same or different; and are a hydrogen or a substituted or unsubstituted alkyl or aryl moiety having from about 1 to about 20 carbons atoms.