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Title:
METHOD FOR PRODUCING STABILIZED POLYMER
Document Type and Number:
Japanese Patent JP2009102657
Kind Code:
A
Abstract:

To provide a method for producing a polymer by using a metallocene catalyst causing no influence on the catalyst activity even when it is added before the polymerization, on the polymerization under a favorable control of the molecular weight distribution and stereoregularity with the metallocene catalyst, and providing the polymer excellent in color tone and stability.

When monomers having ethylenically unsaturated bonds are polymerized with a metallocene catalyst comprising a transition metal, one or more kinds of stabilizers are mixed with an organic aluminum in advance, then added to the catalyst system or the polymerization system before the polymerization, thereby being produced a stabilized polymer.


Inventors:
HIDA ETSUO
YOKOTA HIDEYUKI
KAWAMOTO HISAFUMI
Application Number:
JP2009027428A
Publication Date:
May 14, 2009
Filing Date:
February 09, 2009
Export Citation:
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Assignee:
ADEKA CORP
International Classes:
C08F4/6592; C08F10/00
Domestic Patent References:
JPH09278817A1997-10-28
JPH0912621A1997-01-14
JP2006316160A2006-11-24
JP2003137929A2003-05-14
JPH09194521A1997-07-29
Attorney, Agent or Firm:
Osamu Hatori