Title:
METHOD FOR PRODUCING CARBON MATERIAL DISPERSED LIQUID
Document Type and Number:
WIPO Patent Application WO/2023/058313
Kind Code:
A1
Abstract:
The present invention provides a method for producing a carbon material dispersed liquid, the method being capable of easily producing a dispersion liquid which has excellent viscosity stability, and in which a carbon material containing carbon nanotubes is dispersed well substantially without forming coarse aggregates. The present invention provides a method for producing a carbon material dispersed liquid, the method comprising: a step (1) for obtaining a wet mixed liquid by stirring a starting material that contains a dispersant, a liquid medium, and a carbon material containing carbon nanotubes; and a step (2) for subjecting the wet mixed liquid to a dispersion treatment using a high-pressure homogenizer. With respect to this method for producing a carbon material dispersed liquid, the high-pressure homogenizer is at least one of a high-pressure homogenizer (A1) wherein pressure jetted wet mixed liquids are caused to collide with each other so as to be atomized, and a high-pressure homogenizer (A2) wherein a pressurized wet mixed liquid is introduced into a collision chamber so as to be atomized; and a two-stage dispersion treatment, wherein the inner diameter of an ejection nozzle and the treatment pressure are changed, is carried out.
Inventors:
DOI SEIJI (JP)
ONIDUKA HIROYA (JP)
HASHIMOTO RISA (JP)
UMEDA DAICHI (JP)
SHIMANAKA HIROYUKI (JP)
KAMABAYASHI JUN (JP)
ONIDUKA HIROYA (JP)
HASHIMOTO RISA (JP)
UMEDA DAICHI (JP)
SHIMANAKA HIROYUKI (JP)
KAMABAYASHI JUN (JP)
Application Number:
PCT/JP2022/029986
Publication Date:
April 13, 2023
Filing Date:
August 04, 2022
Export Citation:
Assignee:
DAINICHISEIKA COLOR CHEM (JP)
International Classes:
C08F290/06; C01B32/174; C08K3/04; C08L33/14; C08L33/24; C09C1/44; C09C3/04; C09C3/10; C09D5/24; C09D7/61; C09D11/037; C09D17/00; C09D201/00; C09K23/52
Domestic Patent References:
| WO2016136428A1 | 2016-09-01 |
Foreign References:
| JP2014500212A | 2014-01-09 | |||
| JP2016514080A | 2016-05-19 | |||
| JP2020194625A | 2020-12-03 | |||
| US20170036914A1 | 2017-02-09 | |||
| JP2010174084A | 2010-08-12 | |||
| JP2013537570W | ||||
| JP6652049B2 | 2020-02-19 |
Other References:
JOURNAL OF JAPAN OIL CHEMIST'S SOCIETY, vol. 38, no. 11, 1989, pages 962 - 967
Attorney, Agent or Firm:
KONDO Rieko et al. (JP)
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