CATALYST COMPONENTS FOR THE POLYMERIZATION OF BUTENE-1

摘要

Process for the polymerization of butene-1 carried out in the presence of a catalyst comprising
(a) a solid catalyst component comprising Mg, Ti and an electron donor compound of the following formula (I)
In which
the R groups equal to or different from each other, are C 1 -C 15 hydrocarbon groups, the R 1 -R 2 groups, equal to or different from each other, are hydrogen, halogen or C 1 -C 15 hydrocarbon groups, optionally containing an heteroatom selected from halogen, P, S, N and Si, n and m are integer from 0 to 3 with the proviso that at least one of them is different from 0;
(b) An aluminium alkyl cocatalyst and
(c) an external electron donor