公开(公告)号：EP4414429A1

公开(公告)日：2024-08-14

申请号：EP22878183.7

申请日：2022-08-04

申请人： DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.

发明人： DOI, Seiji ,  ONIDUKA, Hiroya ,  HASHIMOTO, Risa ,  UMEDA, Daichi ,  SHIMANAKA, Hiroyuki ,  KAMABAYASHI, Jun

IPC分类号： C09C1/44 ,  C09D17/00 ,  C08F220/06 ,  C08L55/00 ,  C08L101/00 ,  C09D133/00 ,  C09D201/00 ,  C09K3/16 ,  C09D11/10 ,  C01B32/174 ,  C08K3/04 ,  C09K23/52

CPC分类号： Y02E60/50 ,  C09C1/44 ,  C01B32/174 ,  C09K23/52 ,  C09D201/00 ,  C09D17/00 ,  C08L1/08 ,  C09C1/48 ,  C08K3/04 ,  C08L101/00 ,  C09D11/10 ,  C08F290/06 ,  C09D133/24 ,  C09K3/16 ,  C09D7/61 ,  C08F220/06 ,  C08L55/00 ,  C09D133/00

摘要： There is provided a carbon material dispersion in which a carbon material containing a carbon nanotube is dispersed favorably without substantially producing a coarse aggregate irrespective of liquid compositions and dispersion methods, the carbon material dispersion excellent in viscosity stability. The carbon material dispersion excluding one that contains a volatile salt contains: a carbon material containing a carbon nanotube; a liquid medium; and a dispersant. The content of the dispersant in terms of solid content based on 100 parts by mass of the carbon material is 204 parts by mass or less, and when a dilute dispersion is obtained by diluting the carbon material dispersion with a diluent comprising the liquid medium such that absorbance at a wavelength WM, which is a median value of an arbitrary wavelength WL within a range of 350 to 550 nm and an arbitrary wavelength WH within a range of 650 to 850 nm, is 1.8±0.02, a ratio of absorbance AL at the wavelength WL to absorbance AH at the wavelength WH, (AL/AH), is 1.60 or more for the dilute dispersion.