公开(公告)号：US10077322B2

公开(公告)日：2018-09-18

申请号：US15533856

申请日：2015-12-01

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： Pietro Baita ,  Tiziano Dall'Occo ,  Maria Di Diego ,  Dario Liguori ,  Lorella Marturano ,  Andreas Maus ,  Gabriele Mei ,  Gerhardus Meier ,  Giampiero Morini ,  Roberta Pica ,  Ulf Schueller

IPC: C08F4/649 ,  C08F4/654 ,  C08F110/02 ,  C08F210/02 ,  C08F2/34

CPC classification number: C08F2/34 ,  C08F4/6493 ,  C08F4/6494 ,  C08F110/02 ,  C08F2410/02 ,  C08F2500/12 ,  C08F2500/18 ,  C08F4/6543 ,  C08F210/02

Abstract: The present disclosure provides a gas-phase polymerization process for preparing polyethylene, wherein halogenated alcohols in combination with a Ti based catalyst component and aluminum alkyls as co-catalyst suppress ethane formation or increase polymerization activity.