| abstract |
The present invention relates to a dispersant for dispersing particulate solids in millbases, paints and inks. The present invention provides a composition containing a particulate solid, a polar organic medium, and a compound of formula T- (A) m (B) n -XZQ (Op) or a salt thereof. In the above formula, T is hydrogen or a polymerization terminator; A is a residue of a hydroxy carboxylic acid or lactone thereof; B is a residue of an amino carboxylic acid; X is a direct bond or a divalent group; Z is an acid or basic group or moiety containing an acidic or basic group; Q is an optional residue of an oxide, urea or dibasic acid or anhydride thereof, m and n are positive integers; p represents the number of amino and / or imino groups remaining in Z. |