| abstract |
PROBLEM TO BE SOLVED: To provide a colloid solution of a noble metal or copper which has high chroma and has sufficient coloring properties and does not aggregate even when added to a paint or a resin, a method for producing the same, and a method of using the colloid solution of the noble metal or copper. The present invention provides a coating composition and a resin molded product which have been colored. The high molecular weight pigment dispersant includes colloidal particles of a noble metal or copper and a high molecular weight pigment dispersant. The high molecular weight pigment dispersant has a pigment affinity group in a main chain and / or a plurality of side chains, and has a solvation part. Is a polymer having a comb-shaped structure having a plurality of side chains, or a polymer having a plurality of pigment-affinity portions composed of a pigment-affinity group in a main chain, and has a high comb-shaped structure having a plurality of side chains. The molecule has a number average molecular weight of 2,000 to 1,000,000, and the polymer having a plurality of pigment-affinity portions has a number average molecular weight of 2,000 to 1,000,000 in a colloidal solution of a noble metal or copper. [Selection diagram] None |