Title:
METHOD FOR PRODUCING POLYARYLENE ETHER KETONE RESIN
Document Type and Number:
Japanese Patent JP2023151637
Kind Code:
A
Abstract:
To provide a method for efficiently producing a polyarylene ether ketone resin which is excellent in thermal stability and has less residues causing out gas.SOLUTION: A method for producing a polyarylene ether ketone resin includes: a step (I) of preparing a mixed liquid of a dicarboxylic acid, an acid having a pKa of 0 or less and an anhydride of the acid having the pKa of 0 or less; a step (II) of previously dissolving an oligomer represented by formula (1-1) or (1-2) in the acid having the pKa of 0 or less, and preparing a previously dissolved oligomer; and a step (III) of adding the mixed liquid prepared in the step (I) to the previously dissolved oligomer prepared in the step (II), and preparing a polymerization raw material liquid.SELECTED DRAWING: None
Inventors:
WATANABE YUJI
ISHIHARA MITSUHIRO
YANAGI TOMOMASA
YONEMURA MASAMITSU
ISHIHARA MITSUHIRO
YANAGI TOMOMASA
YONEMURA MASAMITSU
Application Number:
JP2022061362A
Publication Date:
October 16, 2023
Filing Date:
March 31, 2022
Export Citation:
Assignee:
ASAHI KASEI CORP
International Classes:
C08G67/00
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Kengo Yoshida
Takao Inoue
Mitsutsugu Sugimura
Kengo Yoshida
Takao Inoue