| abstract |
A solid component of catalyst for the (co)polymerization of ethylene and α-olefins contains magnesium-carboxylate bonds and transition metal-carboxylate and can be represented by the formula: n n n n M₁Mg (0.3-20) X (2-60) Al (0-6) (R-COO) (0.1-3) (I) n n n nwherein:n M is at least one metal selected from titanium, vanadium, zirconium and hafnium, X is a halogen excluding iodine, and R is an aliphatic, cycloaliphatic or aromatic hydrocarbon radical, containing at least 4 carbon atoms. A description follows of the preparation of a solid component of catalyst (I) and its use in procedures for the (co)polymerization of ethylene and α-olefins. |