Catalyst for the polymerization of olefins.

摘要

Catalysts for the polymerization of olefins, comprising the product of the reaction between:
<UnorderedLists id="ula01" listStyle="none"><ListItem>a) an Al-alkyl compound;</ListItem><ListItem>b) an electron-donor compound capable of reacting with MgCl<Sub>2</Sub> but which results not to be completely complexed with AI-triethyl at the equivalent point of a potentiometric titration under standard conditions and belonging to particular classes of compounds;</ListItem><ListItem>c) a solid comprising a Ti compound having at least a Ti-halogen bond and an electron-donor compound belonging to particular classes of esters, both supported on a Mg halide in active form.</ListItem></UnorderedLists>