PROCESS FOR THE PREPARATION OF ETHYLENE POLYMERS

Title:

PROCESS FOR THE PREPARATION OF ETHYLENE POLYMERS

Document Type and Number:

WIPO Patent Application WO2001048039

Kind Code:

A3

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 single carbon bridged metallocenes, which has a particular ligand system containing a heteroatom.

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JPH10512902	[Title of Invention] A catalyst component with a carrier, a catalyst with a carrier, its production, and an addition polymerization method.
WO/1999/030822	GROUP 11 TRANSITION METAL AMINE CATALYSTS FOR OLEFIN POLYMERIZATION
WO/1994/013715	DILUTE PROCESS FOR THE PREPARATION OF ETHYLENE/ALPHA-OLEFIN COPOLYMER USING METALLOCENE CATALYST SYSTEMS

Inventors:

DALL OCCO TIZIANO (IT)
FUSCO OFELIA (IT)
NIFANT EV ILYA E (RU)
LAISHEVTSEV ILYA P (RU)

Application Number:

PCT/EP2000/013192

Publication Date:

May 02, 2002

Filing Date:

December 22, 2000

Export Citation:

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Assignee:

BASELL TECHNOLOGY CO BV (NL)
DALL OCCO TIZIANO (IT)
FUSCO OFELIA (IT)
NIFANT EV ILYA E (RU)
LAISHEVTSEV ILYA P (RU)

International Classes:

C08F4/602; C07D495/04; C07F17/00; C08F4/642; C08F4/6592; C08F10/00; C08F10/02; C08F4/659; C08F110/02; C08F210/16; C08F210/18; (IPC1-7): C08F10/02

Domestic Patent References:

WO1998022486A1

1998-05-28

Other References:

EWEN J A ET AL: "POLYMERIZATION CATALYSTS WITH CYCLOPENTADIENYL LIGANDS RING-FUSED TO PYRROLE AND THIOPHENE HETEROCYCLES", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,US,AMERICAN CHEMICAL SOCIETY, WASHINGTON, DC, vol. 120, 1998, pages 10786 - 10787, XP000907012, ISSN: 0002-7863

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