Title:
METHOD FOR PRODUCING POLYETHER ESTER COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2018/062965
Kind Code:
A1
Abstract:
The present invention relates to a method for producing a polyether ester copolymer having excellent economic efficiency and physical properties by recycling an unreacted diol. Accordingly, the production method purifies byproducts to separate and recycle a recycle stream comprising an unreacted diol so as to produce a high purity polyether ester copolymer having excellent economic efficiency.
Inventors:
HWANG SOO HWAN (KR)
SHIN SEONG JAE (KR)
OH SUK YUNG (KR)
LEE JEONG SEOK (KR)
KIM MI KYUNG (KR)
SHIN SEONG JAE (KR)
OH SUK YUNG (KR)
LEE JEONG SEOK (KR)
KIM MI KYUNG (KR)
Application Number:
PCT/KR2017/011037
Publication Date:
April 05, 2018
Filing Date:
September 29, 2017
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C08G63/66; C08G63/672; C08G63/85; C08G63/90; C08J11/02
Foreign References:
| KR20090082362A | 2009-07-30 | |||
| KR20050040830A | 2005-05-03 | |||
| KR20140087245A | 2014-07-09 | |||
| KR20120084597A | 2012-07-30 | |||
| KR2001101755A |
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (KR)
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