| abstract |
The present disclosure provides group 4-, i.e., zirconium- and hafnium-, containing catalyst compounds having an ether bridged anilide phenolate ligand. Catalyst compounds of the present disclosure can be asymmetric, having an electron donating side of the catalyst and an electron deficient side of the catalyst. In at least one embodiment, catalysts of the present disclosure provide catalyst activity values of 400,000 gP/mmolCat·h −1 or greater and polyolefins, such as polyethylene copolymers, having comonomer content of from about 3.5 wt % to 8.5 wt %, an Mn of about 15,000 g/mol to about 140,000 g/mol, an Mw of from about 100,000 g/mol to about 300,000 g/mol, and a Mw/Mn of from 1 to 2.5. Catalysts, catalyst systems, and processes of the present disclosure can provide polymers having comonomer content of from 7 wt % to 12 wt %, such as from 8 wt % to 10 wt %). |