Title:
SOLUTION POLYMERIZATION PROCESS
Document Type and Number:
WIPO Patent Application WO2002092649
Kind Code:
A3
Abstract:
A solution polymerization process using a phosphinimine catalyst and a boron activator is conducted at a temperature of about 170 DEG C or greater in the presence of trialkyl aluminum to produce polyethylene having a comparatively broad molecular weight distribution. The polyethylene product produced by the process of this invention is desirable because it can provide enhanced "processability" in comparison to polyethylene having a narrow molecular weight distribution. The process of this invention is advantageous in comparison to prior art processes for the preparation of "broad" polyethylene which use two polymerization reactors and/or more than one polymerization catalyst.
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Inventors:
BROWN STEPHEN JOHN (CA)
SWABEY WILLIAM JOHN (CA)
DOBBIN CHRISTOPHER JOHN BROOKE (CA)
SWABEY WILLIAM JOHN (CA)
DOBBIN CHRISTOPHER JOHN BROOKE (CA)
Application Number:
PCT/CA2002/000558
Publication Date:
January 16, 2003
Filing Date:
April 23, 2002
Export Citation:
Assignee:
NOVA CHEM INT SA (CH)
BROWN STEPHEN JOHN (CA)
SWABEY WILLIAM JOHN (CA)
DOBBIN CHRISTOPHER JOHN BROOKE (CA)
BROWN STEPHEN JOHN (CA)
SWABEY WILLIAM JOHN (CA)
DOBBIN CHRISTOPHER JOHN BROOKE (CA)
International Classes:
C08F2/06; C08F4/645; C08F210/16; C08F110/02; (IPC1-7): C08F210/16; C08F2/06; C08F4/645
Domestic Patent References:
| WO2000011048A1 | 2000-03-02 | |||
| WO1993007188A1 | 1993-04-15 |
Foreign References:
| EP0881233A1 | 1998-12-02 | |||
| DE10048968A1 | 2001-04-19 |
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