Title:
METHOD FOR PRODUCING COPOLYESTER
Document Type and Number:
WIPO Patent Application WO/2022/065686
Kind Code:
A1
Abstract:
The present invention relates to a method for producing copolyester. More specifically, the method for producing copolyester uses a particular heat-stabilizing agent to reduce the use of cobalt-based coloring agent while minimizing yellowing phenomenon.
Inventors:
KIM EUNG GYU (KR)
NAM HO SEONG (KR)
YIM KYOUNG WON (KR)
YUN JU MI (KR)
NAM HO SEONG (KR)
YIM KYOUNG WON (KR)
YUN JU MI (KR)
Application Number:
PCT/KR2021/010685
Publication Date:
March 31, 2022
Filing Date:
August 11, 2021
Export Citation:
Assignee:
HANWHA SOLUTIONS CORP (KR)
International Classes:
C08G63/85; C08G63/183; C08G63/199; C08G63/692; C08K3/013; C08K5/00; C08K5/098; C08K5/5333; C08L67/02
Domestic Patent References:
| WO2010126561A1 | 2010-11-04 |
Foreign References:
| US20100273956A1 | 2010-10-28 | |||
| US20070248803A1 | 2007-10-25 | |||
| KR101551562B1 | 2015-09-08 | |||
| US20150141612A1 | 2015-05-21 | |||
| US20080188602A1 | 2008-08-07 | |||
| KR20190107562A | 2019-09-20 | |||
| KR20160059287A | 2016-05-26 | |||
| US20010056173A1 | 2001-12-27 | |||
| US20070248803A1 | 2007-10-25 | |||
| US20160237207A1 | 2016-08-18 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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