PROCESS FOR THE PREPARATION OF (CO)POLYMERS OF .ALPHA.-OLEFINS

摘要

Process for the preparation of (co) polymers of .alpha.-olefins which comprises polymerizing at least one .alpha.-olefin in the presence of a catalytic system basically consisting of: a) a complex of a metal of groups VIB or VB having general formula (I): M(OCONRR')n (I) wherein M represents a transition metal selected from Ti, Zr, Hf and V, R and R', the same or different, represent a C1-C12 aliphatic or C18 aromatic radical whereas n represents the oxidation state of the metal; b) a co-catalyst consisting of aluminoxane Second page of abstract Missing