Title:
METHOD FOR SEPARATING COLORED RESIN COMPOSITION, AND RESIN RECYCLING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/230741
Kind Code:
A1
Abstract:
Provided is a method which is for separating a colored resin composition, by which a colored resin composition can be easily separated into a colored pigment and a resin, and with which energy saving and efficient material recycling can be achieved. This method for separating a colored resin composition involves dissolving-out a resin from a colored resin composition, which contains a condensed polycyclic organic pigment and/or carbon black, in a liquefied solvent including one or more among liquid dimethyl ether, liquid propane, and liquid butane to separate the colored resin composition into the condensed polycyclic organic pigment and/or carbon black and the resin.
Inventors:
YASUI KENGO (JP)
Application Number:
PCT/JP2022/018352
Publication Date:
November 03, 2022
Filing Date:
April 21, 2022
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C08J11/08; C09B67/54
Domestic Patent References:
| WO2020213032A1 | 2020-10-22 |
Foreign References:
| JP2020513458A | 2020-05-14 | |||
| JP2017522444A | 2017-08-10 | |||
| JP2000038470A | 2000-02-08 | |||
| JP2018016741A | 2018-02-01 | |||
| JP2018016741A | 2018-02-01 | |||
| JP3972516B2 | 2007-09-05 |
Other References:
WU JZHOU YLEMMON EW.: "An equation of state for the thermodynamic properties of dimethyl ether", J. PHYS. CHEM. REF., vol. 40, 2011, pages 023104
Attorney, Agent or Firm:
ONO Takayuki (JP)
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