Title:
POLYMER COMPOUND AND METHOD FOR DECOMPOSING SAME, PLASTIC PRODUCT CONTAINING SAID POLYMER COMPOUND, FIBER-REINFORCED PLASTIC AND METHOD FOR RECOVERING FIBERS CONTAINED THEREIN, AND METHOD FOR PRODUCING POLYESTER, POLYURETHANE, OR POLYCARBONATE
Document Type and Number:
WIPO Patent Application WO/2024/004741
Kind Code:
A1
Abstract:
[Problem] To provide a polymer compound as a new option for an easily decomposable polymer, a method for decomposing same, etc. [Solution] The present invention provides a polymer compound having a partial structure represented by general formula (1). The partial structure has a sulfide bond (sulfur atom) in the structure, and has a carbonyloxy group bonded to a carbon atom located at β-position relative to the sulfur atom. When a polymer compound having said partial structure is treated with an oxidizing agent and a base, a sulfide moiety is first oxidized and converted to a sulfone, and then a hydrogen atom at α carbon of the sulfone is extracted as a proton. As a result, the carbonyloxy group in general formula (1) becomes a carboxylate anion, causing intramolecular cleavage. Consequently, the polymer compound is decomposed.
Inventors:
KIHARA NOBUHIRO (JP)
Application Number:
PCT/JP2023/022656
Publication Date:
January 04, 2024
Filing Date:
June 19, 2023
Export Citation:
Assignee:
UNIV KANAGAWA (JP)
International Classes:
C08G85/00; B29B17/02; C08G18/38; C08G63/692; C08G64/08; C08G75/02; C08J5/04; C08J11/08
Domestic Patent References:
| WO2009081974A1 | 2009-07-02 |
Foreign References:
| JPS62121756A | 1987-06-03 | |||
| CN113736073A | 2021-12-03 | |||
| JPH0612655A | 1994-01-21 | |||
| JP2020114898A | 2020-07-30 | |||
| JPS60101121A | 1985-06-05 | |||
| US4054597A | 1977-10-18 | |||
| JP2003292591A | 2003-10-15 | |||
| JP2006106319A | 2006-04-20 |
Attorney, Agent or Firm:
MAEDA Shinya (JP)
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