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Title:
METHOD FOR PRODUCING POLYETHER KETONE KETONE AND POLYETHER KETONE KETONE PRODUCED THEREBY
Document Type and Number:
WIPO Patent Application WO/2021/206194
Kind Code:
A1
Abstract:
The present invention relates to a method for producing polyether ketone ketone, wherein catalyst injection rates are adjusted during production to suppress scale formation, whereby the yield can be improved. More specifically, the present invention relates to a method for producing polyether ketone ketone and a polyether ketone ketone produced thereby, the method being capable of obtaining high molecular weight polyether ketone ketone at high yield, preferably at a rate of 90% or more, and adjusting the particle size by preventing an agglomeration phenomenon between resin particles with the Inherent Viscosity (IV) value being maintained without a significant change, thereby suppressing scale formation.

Inventors:
SIM YU JIN (KR)
KIM MIN SUNG (KR)
KIM JAE HEON (KR)
AHN CHO HEE (KR)
JEONG KWANG SEOK (KR)
CHO SANG HYUN (KR)
Application Number:
PCT/KR2020/004810
Publication Date:
October 14, 2021
Filing Date:
April 09, 2020
Export Citation:
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Assignee:
HANWHA SOLUTIONS CORP (KR)
International Classes:
C08G65/40
Domestic Patent References:
WO2011004164A22011-01-13
Foreign References:
KR20190056128A2019-05-24
US4716211A1987-12-29
JPH0243220A1990-02-13
US20190040189A12019-02-07
KR20200091202A2020-07-30
Other References:
CHRISTOPHER M TIMPERLEY: "Best Synthetic Methods: Organophosphorus (Ⅴ) Chemistry", ELSEVIER, ISBN: 978-0-08-098212-0, article TIMPERLEY C M; RENARD PIERRE-YVES; GOMEZ CATHERINE, pages: 367 - 562, XP009531270, DOI: 10.1016/B978-0-08-098212-0.00004-2
Attorney, Agent or Firm:
KIM, Chang Deok (KR)
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