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Title:
LIGNIN-FATTY ACID DERIVATIVE, SPUN FIBER AND CARBON FIBER WHICH ARE MANUFACTURED THEREFROM, AND MANUFACTURING METHODS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/158621
Kind Code:
A1
Abstract:
Disclosed are: a lignin-fatty acid derivative; a precursor for manufacturing a carbon fiber, comprising same; a spun fiber and a carbon fiber which are manufactured from the precursor; a method for preparing the lignin-fatty acid derivative; and a method for manufacturing a lignin derivative-based carbon fiber by using same. The lignin-fatty acid derivative is obtained by functionalizing phenolated lignin with a fatty acid, and a spun fiber manufactured therefrom is ultraviolet cross-linkable and has improved flexibility, and thus is irradiated with ultraviolet rays to induce surface cross-linking and allow accelerated thermostabilization to be carried out thereby, so that a carbon fiber without welding and melting problems can be manufactured within a reduced processing time.

Inventors:
KIM SUNG-SOO (KR)
JO SEONG MU (KR)
KIM CHANG SOO (KR)
LEE SUNG HO (KR)
Application Number:
PCT/KR2021/000966
Publication Date:
July 28, 2022
Filing Date:
January 25, 2021
Export Citation:
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Assignee:
KOREA INST SCI & TECH (KR)
International Classes:
C08L97/00; D01D5/00; D01D5/04; D01D5/06; D01D5/08; D01D10/02; D01F2/28; D01F9/17; D06M10/00
Foreign References:
US20200140623A12020-05-07
JPH0713327B21995-02-15
US20140243511A12014-08-28
JP2014196416A2014-10-16
Other References:
PODSCHUN JACOB; SAAKE BODO; LEHNEN RALPH: "Reactivity enhancement of organosolv lignin by phenolation for improved bio-based thermosets", EUROPEAN POLYMER JOURNAL, PERGAMON PRESS LTD OXFORD, GB, vol. 67, 25 March 2015 (2015-03-25), GB , pages 1 - 11, XP029230523, ISSN: 0014-3057, DOI: 10.1016/j.eurpolymj.2015.03.029
SETäLä HARRI; ALAKOMI HANNA-LEENA; PAANANEN ARJA; SZILVAY GéZA R.; KELLOCK MIRIAM; LIEVONEN MIIKKA; LILJESTRöM: "Lignin nanoparticles modified with tall oil fatty acid for cellulose functionalization", CELLULOSE, SPRINGER NETHERLANDS, NETHERLANDS, vol. 27, no. 1, 3 October 2019 (2019-10-03), Netherlands , pages 273 - 284, XP036988857, ISSN: 0969-0239, DOI: 10.1007/s10570-019-02771-9
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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