	US 12,410,058 B2
	Method for manufacturing carbon nanotube aqueous dispersion
Hideaki Komiyama, Nagaoka (JP); Atsushi Tamura, Nagaoka (JP); and Toshihiko Soyama, Nagaoka (JP)
Assigned to HOKUETSU CORPORATION, Nagaoka (JP)
Appl. No. 17/761,522
Filed by HOKUETSU CORPORATION, Nagaoka (JP)
PCT Filed Sep. 14, 2020, PCT No. PCT/JP2020/034637 § 371(c)(1), (2) Date Mar. 17, 2022, PCT Pub. No. WO2021/065432, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 2019-182391 (JP), filed on Oct. 2, 2019.
Prior Publication US 2022/0363544 A1, Nov. 17, 2022
Int. Cl. C01B 32/174 (2017.01); C08J 3/215 (2006.01); C08K 3/04 (2006.01); C08L 1/02 (2006.01); H05K 9/00 (2006.01)

CPC C01B 32/174 (2017.08) [C08J 3/215 (2013.01); C08K 3/041 (2017.05); C08L 1/02 (2013.01); C08K 2201/011 (2013.01); H05K 9/009 (2013.01)]

6 Claims

1. A method of producing a carbon nanotube aqueous dispersion, comprising:

preparing mixed liquids by mixing carbon nanotubes, sodium carboxymethyl cellulose and water; and

dispersing the carbon nanotubes contained in the mixed liquids by an aqueous counter collision method, wherein:

a ratio of a mess of the sodium carboxymethyl cellulose to a mass of the carbon nanotubes in the mixed liquids is 1/7 or more and 3 or less, and

the content of the carbon nanotubes in the mixed liquids is 1.25 mass % or more and 4.375 mass % or less.