Co-catalyst with a Ziegler-Natta catalyst to control the polydispersity of polypropylene.

摘要

The present invention provides a catalyst system PRESENTS AN UNEXPECTED CONTROL PROPERTIES desired in the product polymer. CATALYST SYSTEM INCLUDING A CATALYST SUPPORT CONVENTIONAL ZIEGLER - NATTA in combination with an isoprenyl aluminum. The system has good control over the POLI-dispersion of polymer products when the amount of electron donor is varied.