| 摘要 |
PROBLEM TO BE SOLVED: To provide a black color composition colored with desired concentration of black color and providing a black color molded body excellent in heat resistance, a carbon black dispersion containing carbon black favourably dispersed providing the black composition excellent in heat resistance, a dispersion method of carbon black capable of dispersing the carbon black favourably in a short time and preparing the carbon black dispersion providing the black color composition excellent in heat resistance.SOLUTION: There is provided a dispersion method of carbon black for dispersing carbon black treated by introducing an acidic group on a surface by using polyamic acid so that the carbon black content in a solid component is 50 to 99 mass in a solvent containing N,N,N',N'-tetramethyl urea.SELECTED DRAWING: None |
