Metallocenkatalysator und Katalysatorsystem für die Herstellung von Polypropylenmischungen aus iso- und syndiotaktischem Polypropylen

摘要

A polyolefin metallocene catalyst which includes two metallocene components, a stereorigid isospecific metallocene catalyst component and a stereorigid syndiospecific metallocene catalyst component, both of which are supported upon the same support. A method of forming a catalyst system includes contacting the above catalyst with a cocatalyst or Lewis acid. A method of polymerization includes contacting an olefin with the catalyst system.