公开(公告)号：EP1611164A1

公开(公告)日：2006-01-04

申请号：EP04709240.8

申请日：2004-03-09

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： MORINI, Giampiero ,  BALBONTIN, Giulio ,  PIEMONTESI, Fabrizio ,  FUSTO, Maria ,  VITALE, Gianni ,  PRINI, Giansiro

IPC: C08F4/02 ,  C08F10/00 ,  C08F10/06 ,  C08F4/654

CPC classification number: C08F10/00 ,  C08F110/02 ,  C08F110/06 ,  C08F4/6543 ,  C08F4/651 ,  C08F2500/12 ,  C08F4/65

Abstract: The present invention relates to MgCl2.(EtOH),m(ROH)n(H20)p adduct in which R is a Cl-C15 hydrocarbon group different from ethyl, n and m are indexes, higher than 0, satisfying the equations (n+m) ≥.7 and 0.05 ≤n/(n+m) ≤­0.95 and p is a number ranging from 0 to 0.7 with the proviso that when R is methyl and (n+m) is in the range of 0.7 to 1, the value of n/(n+m) ranges from 0.05 to 0.45. The catalyst components obtained from the adducts of the present invention are capable to give catalysts for the polymerization of olefins characterized by enhanced activity with respect to the catalysts prepared from the adducts of the prior art.