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Title:
CHEMICAL AND BIOLOGICAL INTEGRATED DEGRADATION PROCESS FOR POLYETHYLENE TEREPHTHALATE (PET), FOR RECYCLING PET
Document Type and Number:
WIPO Patent Application WO/2022/182196
Kind Code:
A1
Abstract:
The present invention relates to a chemical and biological integrated degradation process for PET, for recycling PET, and, more specifically, the present invention provides a PET upcycling technique for producing a high value-added product via a chemical pretreatment process of PET, a TPA and EG production process using an enzyme, and a process for converting TPA and EG to PCA and GLA, respectively.

Inventors:
KIM KYOUNG HEON (KR)
KIM DONG HYON (KR)
KIM JAE KYUN (KR)
HAN DONG OH (KR)
Application Number:
PCT/KR2022/002784
Publication Date:
September 01, 2022
Filing Date:
February 25, 2022
Export Citation:
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Assignee:
UNIV KOREA RES & BUS FOUND (KR)
International Classes:
C08J11/10; B09B5/00; B29B17/02; B29B17/04; C12P7/40; B29K67/00
Domestic Patent References:
WO2019053392A12019-03-21
WO2018168679A12018-09-20
Foreign References:
US10508186B22019-12-17
KR20200119213A2020-10-19
KR20200119213A2020-10-19
KR20200119213A2020-10-19
Other References:
KNOTT BRANDON C., ERICKSON ERIKA, ALLEN MARK D., GADO JAPHETH E., GRAHAM ROSIE, KEARNS FIONA L., PARDO ISABEL, TOPUZLU ECE, ANDERS: "Characterization and engineering of a two-enzyme system for plastics depolymerization", PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES, NATIONAL ACADEMY OF SCIENCES, vol. 117, no. 41, 13 October 2020 (2020-10-13), pages 25476 - 25485, XP055962138, ISSN: 0027-8424, DOI: 10.1073/pnas.2006753117
KIM DONG HYUN, HAN DONG OH, IN SHIM KYU, KIM JAE KYUN, PELTON JEFFREY G., RYU MI HEE, JOO JEONG CHAN, HAN JEONG WOO, KIM HEE TAEK,: "One-Pot Chemo-bioprocess of PET Depolymerization and Recycling Enabled by a Biocompatible Catalyst, Betaine", ACS CATALYSIS, AMERICAN CHEMICAL SOCIETY, US, vol. 11, no. 7, 2 April 2021 (2021-04-02), US , pages 3996 - 4008, XP055962143, ISSN: 2155-5435, DOI: 10.1021/acscatal.0c04014
Attorney, Agent or Firm:
DANA PATENT LAW FIRM (KR)
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