PROCESS FOR PRODUCING OLEFIN POLYMER

Title:

PROCESS FOR PRODUCING OLEFIN POLYMER

Document Type and Number:

WIPO Patent Application WO/2001/029094

Kind Code:

A1

Abstract:

A process for producing an olefin polymer by the continuous slurry polymerization or continuous vapor-phase polymerization of an olefin using a metallocene catalyst. In the process, the catalyst is introduced into a polymerizer while the olefin and the monomer are being continuously fed to the polymerizer. Before the catalyst is used to (co)polymerize the olefin in the polymerizer, the catalyst is treated with hydrogen by contacting it with hydrogen. The process is advantageous in that olefin (co)polymerization can be stably conducted without generating a massive polymer. Thus, a polymer discharge pipe can be prevented from being clogged with massive polymers. Consequently, continuous olefin (co)polymer production is possible on a commercial scale.

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Inventors:

KOIKE TATSUYA

Application Number:

PCT/JP2000/002684

Publication Date:

April 26, 2001

Filing Date:

April 25, 2000

Export Citation:

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Assignee:

ASAHI CHEMICAL IND (JP)

International Classes:

C08F2/01; C08F2/02; C08F2/34; C08F4/60; C08F4/64; C08F10/00; C08F210/16; C08F4/659; C08F4/6592; (IPC1-7): C08F4/60; C08F10/00; C08F2/02; C08F2/34; C08F2/01

Domestic Patent References:

WO1998042757A1

1998-10-01

Foreign References:

US5023388A	1991-06-11
JPH02269705A	1990-11-05

Other References: