公开(公告)号：US20200071429A1

公开(公告)日：2020-03-05

申请号：US16610794

申请日：2018-04-27

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： PIETRO BAITA ,  DARIO LIGUORI ,  HARILAOS MAVRIDIS ,  GIAMPIERO MORINI ,  ROBERTA PICA

IPC: C08F4/655 ,  C08F210/16 ,  C08F2/34 ,  C08F4/651

Abstract: A solid catalyst component (i) made from or containing a titanium compound, a magnesium compound and an ether, is activated by using two different aluminum alkyl compounds (ii) and (iii) in sequence and under specific molar ratios relative to each other and to the ether of the solid catalyst component (i).