PROCEDIMENTO PER LA POLIMERIZZAZIONE DI ETILENE E/O ALFA-OLEFINE,E CATALIZZATORE RELATIVO

摘要

Polymerization of ethylene or alpha -olefins is carried out with use of a catalyst comprising a modified titanium component obtained by pulverizing the starting titanium component of Ziegler solid catalysts and subjecting the resultant to a modification treatment through contact with an inert organic solvent or a mixture thereof with a modifier, and an organoaluminum component.