| abstract |
An object of the present invention is to provide a carbon black particle powder having excellent dispersibility, excellent fluidity and light resistance, and a carbon black particle powder having a molecular weight dependent parameter α value of 0.35 or more. The present invention relates to a paint and a resin composition. The carbon black particles having ultrafine oxide particles or ultrafine hydroxide particles containing at least one selected from Zr, Ti or Ce on the surface of the particles are formed of an aqueous suspension containing carbon black particles. After an aqueous solution of a compound containing one or more selected from Zr, Ti or Ce is added to the solution and the solution is rapidly precipitated, the carbon black particles in the solution are filtered together with ultrafine oxide particles or ultrafine hydroxide particles. Separately, a mixture comprising carbon black particles and oxide ultrafine particles or hydroxide ultrafine particles is obtained, and then, a compaction pulverization process is performed to fix the oxide ultrafine particles or hydroxide ultrafine particles to the surface of the carbon black particles. Obtained. [Selection diagram] None |