Title:
HYBRID DEPOLYMERIZATION OF POLYMER COMPRISING ESTER FUNCTIONAL GROUP, USING SOLVENT IN WHICH CARBONYL-BASED AND ALCOHOL-BASED COMPOUNDS ARE MIXED
Document Type and Number:
WIPO Patent Application WO/2024/005446
Kind Code:
A1
Abstract:
The present invention relates to a hybrid depolymerization method for a polymer comprising an ester functional group and, specifically, to a method comprising: using, as a reaction solvent, a mixture of a compound with a carbonyl functional group and a compound with an alcohol functional group and using an alkali hydroxide, thereby decomposing, into monomers, a polymer comprising an ester functional group; and obtaining the monomers generated thereby.
Inventors:
CHO JOUNG MO (KR)
Application Number:
PCT/KR2023/008650
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; C08J11/16; C08J11/24; C08J11/26
Foreign References:
| KR102223614B1 | 2021-03-05 | |||
| CN113527096A | 2021-10-22 | |||
| 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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