Patent ID: 9424960
Filing Date: 2016-08-23
CPC Classification: B82Y,C01B,D01D,D01F,D10B,H01B,Y10S,Y10T

Claim Text:
1. A method for producing an aggregated thread structure, the method comprising: (a) dispersing carbon nanotubes to a first solvent, which is water or a mixed solvent containing organic solvent and water, with a surfactant, to create a dispersion; and (b) injecting said dispersion of carbon nanotubes into a condensing liquid, which is a second solvent differing from the first solvent, to thereby aggregate and spin the carbon nanotubes; wherein said condensing liquid is a solution consisting essentially of one of N-methyl pyrrolidone, N,N-dimethyl acetamide, propylene carbonate, formamide, N-methyl formamide, methanol, ethanol, or propanol, and said condensing liquid and said first solvent differ in their affinity to said surfactant, and the pH of said condensing liquid is 3 to 11.