Title:
CATALYST SYSTEM AND ITS USE IN OLEFIN POLYMERIZATION
Document Type and Number:
WIPO Patent Application WO2002040555
Kind Code:
A3
Abstract:
A polymerization catalyst system and a method for preparing the catalyst system is disclosed. The catalyst system includes a bulky ligand metallocene catalyst compound, preferably containing a single cyclopentadienyl or substituted cyclopentadienyl-type ring system, a Group 13 element containing first modifier, and a cycloalkadiene second modifier. The present invention also provides a process for polymerizing olefins(s) utilizing the catalyst systems described herein.
Inventors:
KAO SUN-CHUEH
SHER JAIMES
KAROL FREDERICK
SHER JAIMES
KAROL FREDERICK
Application Number:
PCT/US2001/042459
Publication Date:
October 03, 2002
Filing Date:
October 02, 2001
Export Citation:
Assignee:
UNIVATION TECH LLC (US)
International Classes:
C08F4/64; C08F4/642; C08F4/646; C08F4/649; C08F4/6592; C08F10/00; C08F210/16; C08F4/659; (IPC1-7): C08F10/00; C08F4/64
Foreign References:
| EP0768320A1 | 1997-04-16 | |||
| US5747406A | 1998-05-05 |
Other References:
CHIEN J C W ET AL: "ISOSPECIFIC POLYMERIZATION OF PROPYLENE CATALYZED BY RAC-ETHYLENEBIS(INDENYL)METHYLZIRCONIUM CATION", PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF USA, NATIONAL ACADEMY OF SCIENCE. WASHINGTON, US, vol. 113, 1991, pages 8570 - 8571, XP000990927, ISSN: 0027-8424
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