Title:
POLYETHER ETHER KETONE DECOMPOSITION METHOD AND NOVEL SUBSTANCE USING STARTING MATERIAL THAT IS DECOMPOSITION PRODUCT OBTAINED BY THIS DECOMPOSITION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/190767
Kind Code:
A1
Abstract:
[Problem] The present invention provides: a polyether ether ketone decomposition method which efficiently decomposes a polyether ether ketone; and a novel compound which is synthesized using a starting material that is a decomposition product obtained by this polyether ether ketone decomposition method. [Solution] A polyether ether ketone decomposition method which decomposes a polyether ether ketone according to the present invention comprises a first reaction step in which the polyether ether ketone, a base and at least one of an alkane thiol, an aromatic mercaptan, sodium sulfide and elemental sulfur are reacted in an organic solvent. A polyether ether ketone can be efficiently decomposed by this polyether ether ketone decomposition method.
Inventors:
MINAMI YASUNORI (JP)
NAKAJIMA YUMIKO (JP)
SATO KAZUHIKO (JP)
NAKAJIMA YUMIKO (JP)
SATO KAZUHIKO (JP)
Application Number:
PCT/JP2023/012993
Publication Date:
October 05, 2023
Filing Date:
March 29, 2023
Export Citation:
Assignee:
AIST (JP)
International Classes:
C07C319/14; C07C323/22; C07C323/52
Foreign References:
| CN113024591A | 2021-06-25 | |||
| JPS52104592A | 1977-09-02 | |||
| JPS6172748A | 1986-04-14 |
Other References:
SHIBASAKI, Y. KAMIMORI, T. KADOKAWA, J.-I. HATANO, B. TAGAYA, H.: "Decomposition reactions of plastic model compounds in sub- and supercritical water", POLYMER DEGRADATION AND STABILITY, BARKING, GB, vol. 83, no. 3, 1 March 2004 (2004-03-01), GB , pages 481 - 485, XP004490474, ISSN: 0141-3910, DOI: 10.1016/j.polymdegradstab.2003.09.010
DANDY L.O.; OLIVEUX G.; WOOD J.; JENKINS M.J.; LEEKE G.A.: "Accelerated degradation of Polyetheretherketone (PEEK) composite materials for recycling applications", POLYMER DEGRADATION AND STABILITY, BARKING, GB, vol. 112, 1 January 1900 (1900-01-01), GB , pages 52 - 62, XP029164317, ISSN: 0141-3910, DOI: 10.1016/j.polymdegradstab.2014.12.012
MINAMI YASUNORI, MATSUYAMA NAO, TAKEICHI YASUO, WATANABE RYOTA, MATHEW SIBY, NAKAJIMA YUMIKO: "Depolymerization of robust polyetheretherketone to regenerate monomer units using sulfur reagents", COMMUNICATIONS CHEMISTRY, vol. 6, no. 1, XP093097565, DOI: 10.1038/s42004-023-00814-8
DANDY L.O.; OLIVEUX G.; WOOD J.; JENKINS M.J.; LEEKE G.A.: "Accelerated degradation of Polyetheretherketone (PEEK) composite materials for recycling applications", POLYMER DEGRADATION AND STABILITY, BARKING, GB, vol. 112, 1 January 1900 (1900-01-01), GB , pages 52 - 62, XP029164317, ISSN: 0141-3910, DOI: 10.1016/j.polymdegradstab.2014.12.012
MINAMI YASUNORI, MATSUYAMA NAO, TAKEICHI YASUO, WATANABE RYOTA, MATHEW SIBY, NAKAJIMA YUMIKO: "Depolymerization of robust polyetheretherketone to regenerate monomer units using sulfur reagents", COMMUNICATIONS CHEMISTRY, vol. 6, no. 1, XP093097565, DOI: 10.1038/s42004-023-00814-8
Attorney, Agent or Firm:
BRANCHE INTERNATIONAL IP LAW FIRM. P. C. (JP)
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