公开(公告)号：US20040097669A1

公开(公告)日：2004-05-20

申请号：US10700095

申请日：2003-11-03

Applicant: Basell Polyolefine GmbH

Inventor： Tiziano Dall'Occo ,  Ofelia Fusco ,  Maurizio Galimberti ,  Ilya Nifant'ev ,  Ilya Laishevtsev

IPC: C08F004/44

CPC classification number: C07F17/00 ,  C07F7/0805 ,  C07F7/0814 ,  C08F4/65912 ,  C08F10/02 ,  C08F210/16 ,  C08F210/18 ,  Y10S526/943 ,  C08F4/65927 ,  C08F210/06 ,  C08F2500/20 ,  C08F2500/17 ,  C08F210/14 ,  C08F2500/25

Abstract: Ethylene based polymers having high molecular weights can be obtained in high yields at temperatures of industrial interest, by carrying out the polymerization reaction in the presence of catalysts comprising silicon bridged metallocenes having a particular ligand system containing a heteroatom.