公开(公告)号：US20170327603A1

公开(公告)日：2017-11-16

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: C08F2/34 ,  C08F110/02 ,  C08F4/649

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.