POLYURETHANE DISPERSANTS BASED ON ASYMMETRIC BRANCHED TRISUBSTITUTED ISOCYANATE REACTIVE COMPOUNDS

摘要

Polyurethane dispersants are provided based on asymmetric branched trisubstituted isocyanate reactive compounds. These polyurethane dispersants are used to disperse pigments and/or disperse dyes and inks containing pigments and/or disperse dyes dispersed with these polyurethane ionic dispersants. The polyurethane dispersants can have nonionic hydrophilic substituents. The pigments dispersed with these polyurethane dispersants can be used in the formulation of inks, especially ink jet inks.