Patent ID: 6916895

Claim:
A polyethylene polymer produced by a process comprising: contacting ethylene and optionally one or more α-olefin monomers together, in the presence of a catalyst under polymerization conditions, wherein the catalyst was produced by: i) contacting a soluble magnesium dialkoxide compound of the general formula Mg(OR″) 2 with a halogenating agent capable of exchanging one halogen for one alkoxide to form a reaction product A, where R″ is a hydrocarbyl or substituted hydrocarbyl having from 1 to 20 carbon atoms; ii) contacting the reaction product A with a first halogenating/titanating agent to form a reaction product B; iii) contacting the reaction product B with a second stronger halogenating/titanating agent to form a reaction product C; iv) contacting the reaction product C with an organoaluminum preactivating agent to form a preactivated catalyst; and v) heating the preactivated catalyst at a temperature in the range of about 90° C. to about 150° C., for a time in the range of about thirty minutes to about a twenty-four hours.