Title:
COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2024/058246
Kind Code:
A1
Abstract:
Provided is a composition comprising acetylated wood flour. This acetylated wood flour is substantially free of an inorganic acid ester bonded to a cellulose backbone. Also provided is a method for the composition, the method comprising: treating wood flour under reduced pressure; immersing the reduced pressure-treated wood flour in a solvent containing an acetylating agent and applying a pressure at 10 bar or higher; and then applying a pressure of 1.1-1.9 bar absolute under an inert gas atmosphere to the solvent containing the wood flour and the acetylating agent while maintaining a temperature of 60-130°C to acetylate the wood flour.
Inventors:
YOSHIOKA MARIKO (JP)
RABEMANOLONTSOA HARIFARA FENOHASINA (JP)
SHIRAISHI NOBUO (JP)
KITAYAMA KENJI (JP)
RABEMANOLONTSOA HARIFARA FENOHASINA (JP)
SHIRAISHI NOBUO (JP)
KITAYAMA KENJI (JP)
Application Number:
PCT/JP2023/033529
Publication Date:
March 21, 2024
Filing Date:
September 14, 2023
Export Citation:
Assignee:
UNIV KYOTO (JP)
DAICEL CORP (JP)
DAICEL CORP (JP)
International Classes:
C08L97/02; C08L51/02
Foreign References:
| JPS6239656A | 1987-02-20 | |||
| JPS57103804A | 1982-06-28 | |||
| JP2001342353A | 2001-12-14 | |||
| JP2007084769A | 2007-04-05 | |||
| JP2020196856A | 2020-12-10 | |||
| JPS62225553A | 1987-10-03 | |||
| JPH07216203A | 1995-08-15 | |||
| JPH07304897A | 1995-11-21 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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