One pot preparation of bimetallic catalysts for ethylene 1-olefin copolymerization

A process for preparing a bimetallic catalyst, the process comprising:

• (a) providing a slurry of a supported non-metallocene catalyst by:
• (i) preparing a slurry of a dehydrated support material in a non-polar hydrocarbon selected from the group consisting of C4-C10 linear or branched alkanes, and cycloalkanes;
• (ii) contacting the slurry of (i) with an organomagnesium compound RMgR′, where R and R′ are the same or different C2-C12 alkyl groups;
• and
• (iii) contacting the slurry of (ii) with a non-metallocene compound of a Group 4 or Group 5 transition metal;
• (b) contacting the slurry of the supported non-metallocene catalyst in a non-polar hydrocarbon with a solution of a substituted, unbridged bis-cyclopentadienyl metallocene compound and methylalumoxane in an aromatic solvent;
• and
• (c) drying the product of (b) to obtain a supported bimetallic catalyst.