SOLID CATALYTIC COMPONENT AND CATALYTIC SYSTEM OF THE ZIEGLER-NATTA TYPE, PROCESS FOR THEIR PREPARATION AND THEIR USE IN THE POLYMERISATION OF ALK-1-ENES

摘要

The present invention relates to a new solid catalytic component, which can be used in combination with an aluminum compound as co-catalyst and optionally an external electron donor as additional co-catalyst to form a catalytic system of the Ziegler-Natta-catalyst- type. The solid catalytic system comprises titanium or vanadium compound, a compound of magnesium containing at least one halogen, a paniculate porous support, and optionally an internal electron donor.