PIGMENT DISPERSANTS FORMED BY REACTING AN ISOCYANATE WITH A POLY(ETHYLENE GLYCOL) ALKYL ETHER, A POLYESTER OR POLYACRYLATE AND A DIAMINE

摘要

Pigment dispersants prepared by reacting an isocyanate oligomer having an average functionality of at least three with a polyester or polyacrylate, a poly(ethylene glycol) alkyl ether, and a diamine having a primary amine and a tertiary amine have excellent stabilizing properties and offer a wide formulation latitude with a variety of solvent systems, including polar solvents and water, and are particularly useful as pigment dispersants for paints and coating applications.