Title:
METHOD FOR PRODUCING POLYKETONE
Document Type and Number:
Japanese Patent JP2004059730
Kind Code:
A
Abstract:
To provide a method for efficiently and inexpensively producing a high-molecular-weight polyketone polymer.
The method for producing the high-viscosity polyketone is one comprising copolymerizing carbon monoxide with at least one ethylenically unsaturated compound in the presence of a metal complex catalyst obtained by reacting a palladium compound with a bidentate ligand having a group 15 atom and an anion of an acid of a pKa of 4 or below to produce a polyketone having an intrinsic viscosity of 2.5 dL/g or above, wherein isopropanol is used as a reaction medium or an additive.
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Inventors:
WATANABE TOMOYA
KOMATSU TAKASHI
KOMATSU TAKASHI
Application Number:
JP2002219817A
Publication Date:
February 26, 2004
Filing Date:
July 29, 2002
Export Citation:
Assignee:
ASAHI KASEI CORP
International Classes:
C08G67/02; (IPC1-7): C08G67/02
Attorney, Agent or Firm:
Yoshio Narui
Takeshi Shimizu
Joi Ito
Hideo Takei
Takeshi Shimizu
Joi Ito
Hideo Takei