Abstract: Described are compositions including: (a) a polymeric dispersant including: (i) an average of at least two polyether pendant groups per molecule; and (ii) an average of at least two amine groups per molecule; and (b) a functionalized acid component including sulfonic acid and/or phosphoric acid functionalized with at least one of an aromatic functional group or a fatty functional group; and wherein at least about 60 percent of the amine groups present in the polymeric dispersant are each individually neutralized with a molecule of the functionalized acid component. Also described are pigment dispersions and/or ink formulations including these compositions, as well as various methods of making and/or using the compositions, pigment dispersions, and/or ink formulations.

Abstract: The present invention relates to a polymeric aromatic amide dispersant, and a composition containing a particulate solid, an aqueous or polar organic medium, and a polymeric aromatic amide dispersant having at least one tertiary amide linking group connecting through a carbonyl group of the amide to an aromatic ring having a residual carboxylic acidic group thereon. The invention further provides compositions for millbases, dispersions, coatings and inks.

Abstract: The present invention relates to a polymeric dispersant containing an tertiary amide linkage between the aromatic anchoring group and a solubilizing chain, and a composition containing a particulate solid, an aqueous or polar organic medium, and a polymeric aromatic amide dispersant having at least one tertiary amide linking group connecting through a carbonyl group of the amide to an aromatic ring having two or more residual carboxylic acid groups or a sulfonic acid group and a residual carboxylic acidic group thereon. The invention further provides compositions for millbases, dispersions, coatings and inks containing said dispersant.