Title:
ポリアリーレンエーテルケトン樹脂の精製方法、及び該精製方法を含むポリアリーレンエーテルケトン樹脂の製造方法
Document Type and Number:
Japanese Patent JP7272126
Kind Code:
B2
Abstract:
To provide a polyarylene ether ketone resin which enables formation of a molding that prevents black discoloration and has less discoloration even when the polyarylene ether ketone resin is melted at high temperature to form the molding.SOLUTION: A method for purifying a polyarylene ether ketone resin includes a first step of mixing a polyarylene ether ketone resin with an organic solvent (1) having a hydroxyl group and an acid dissociation constant pKa of 5-15 and a poor solvent (2) having a solubility to the polyarylene ether ketone resin lower than that of the organic solvent (1) to obtain a mixed liquid, and a second step of separating the polyarylene ether ketone resin from the mixed liquid obtained in the first step.SELECTED DRAWING: None
Inventors:
Ryuichi Matsuoka
Masaya Masumoto
Masaya Masumoto
Application Number:
JP2019110031A
Publication Date:
May 12, 2023
Filing Date:
June 13, 2019
Export Citation:
Assignee:
DIC Corporation
International Classes:
C08G65/46; C08G65/40; C08G67/00
Domestic Patent References:
| JP2005248095A | ||||
| JP1178520A | ||||
| JP61247731A |
Foreign References:
| WO2003050163A1 | ||||
| WO2015182621A1 |
Attorney, Agent or Firm:
Takayuki Ohno
Akihiro Iwamoto
Hidefumi Sugaya
Masahiro Niwa
Akihiro Iwamoto
Hidefumi Sugaya
Masahiro Niwa