| abstract |
catalyst components for the polymerization of olefins. the present invention relates to a catalyst component for the polymerization of olefins, containing mg, ti and an electron donor compound of the following formula (i) (i) in which the groups r1 are selected from groups of hydrocarbons c1-c15, groups r8, the same or different from each other, are selected from hydrogen, halogen and hydrocarbon groups c1-c15, optionally containing a heteroatom selected from halogen, o, p, s, n and si is a group of divalent hydrocarbons optionally containing heteroatoms selected from halogen, o, p, s, ne si. |