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Title:
METHOD FOR PRODUCING THIOURETHANE RESIN STARTING MATERIAL AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/107830
Kind Code:
A1
Abstract:
The present invention provides a method for producing a thiourethane resin starting material, the method comprising a reaction step for bringing a composition X containing a thiourethane resin and impurities into contact with an active hydrogen compound, to react the thiourethane resin in the composition X and the active hydrogen compound and produce a thiourethane resin starting material.

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Inventors:
MURAKAMI MASAKAZU (JP)
NAKANO SHOTARO (JP)
Application Number:
PCT/JP2021/042341
Publication Date:
May 27, 2022
Filing Date:
November 17, 2021
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C07C319/20; C07C319/02; C07C319/28; C07C321/14; C08G18/38; C08J11/24; C08J11/28; G02B1/00; G02B1/04
Domestic Patent References:
WO2015088015A12015-06-18
WO2021157701A12021-08-12
WO2021157702A12021-08-12
WO2007052329A12007-05-10
WO2008047626A12008-04-24
WO2017047745A12017-03-23
Foreign References:
JPH07252207A1995-10-03
JPH1129653A1999-02-02
CN103483620A2014-01-01
CN105693982A2016-06-22
JPS6346213A1988-02-27
JPH02270859A1990-11-05
JPH07252207A1995-10-03
JPS60199016A1985-10-08
JPS60217229A1985-10-30
JP2002194083A2002-07-10
JP2020192462A2020-12-03
JP2021125570A2021-08-30
Other References:
LI LINGQIAO, CHEN XI, TORKELSON JOHN M.: "Reprocessable Polymer Networks via Thiourethane Dynamic Chemistry: Recovery of Cross-link Density after Recycling and Proof-of-Principle Solvolysis Leading to Monomer Recovery", MACROMOLECULES, AMERICAN CHEMICAL SOCIETY, US, vol. 52, no. 21, 12 November 2019 (2019-11-12), US , pages 8207 - 8216, XP055931633, ISSN: 0024-9297, DOI: 10.1021/acs.macromol.9b01359
HUANG SIJIA, MACIEJ PODGÓRSKI, XUN HAN, CHRISTOPHER N. BOWMAN: "Chemical recycling of poly(thiourethane) thermosets enabled by dynamic thiourethane bonds", POLYMER CHEMISTRY, vol. 11, no. 43, 1 January 2020 (2020-01-01), pages 6879 - 6883, XP055931635, DOI: 10.1039/x0xx00000x
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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