Title:
METHOD FOR DEPOLYMERIZATION OF POLYMER CONTAINING ESTER FUNCTIONAL GROUP BY USING MIXTURE ORGANIC SOLVENT
Document Type and Number:
WIPO Patent Application WO/2024/005445
Kind Code:
A1
Abstract:
The present invention relates to a method for depolymerization of a polymer containing an ester functional group, wherein an aromatic compound having an alkoxy functional group and a compound having an alcohol functional group are mixed to be used as a solvent for reaction and an extractant for foreign material removal and an alkali hydroxide is applied as a reactant, thereby depolymerizing the polymer containing an ester functional group and obtaining high-purity monomers produced from the polymer.
Inventors:
CHO JOUNG MO (KR)
Application Number:
PCT/KR2023/008649
Publication Date:
January 04, 2024
Filing Date:
June 22, 2023
Export Citation:
Assignee:
KOREA RES INST CHEMICAL TECH (KR)
International Classes:
C08J11/18; C07C67/40; C07C67/56; C07C69/82; C08J11/24
Foreign References:
| CN113527096A | 2021-10-22 | |||
| KR20200142381A | 2020-12-22 | |||
| KR20220000805A | 2022-01-04 | |||
| JP2006143622A | 2006-06-08 |
Other References:
HU L.C. ET AL: "Alkali-Decomposition of Poly(ethylene terephthalate) in Mixed Media of Nonaqueous Alcohol and Ether. Study on Recycling of Poly(ethylene terephthalate).", POLYMER JOURNAL, NATURE PUBLISHING GROUP UK, LONDON, vol. 29, no. 9, 1 January 1997 (1997-01-01), London , pages 708 - 712, XP002999790, ISSN: 0032-3896, DOI: 10.1295/polymj.29.708
Attorney, Agent or Firm:
GHONG-GAN INTERNATIONAL PATENT LAW FIRM (KR)
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