Patent ID: 7678850

Claim:
A pigment dispersion composition useful for forming coating compositions comprising a dispersed pigment, a liquid carrier and an aminated macromonomer dispersant; wherein: the aminated macromonomer dispersant comprises the structure wherein each R 1 and R 2 are independently H, alkyl of 1-20 carbon atoms, aryl, substituted alkyl of 1-20 carbon atoms, or substituted aryl; R 3 and R 4 are independently H, alkyl of 1-100 carbon atoms, or substituted alkyl of 1-100 non-hydrogen atoms or R 3 is a polymer; R 5 is methyl, hydrogen or hydroxymethyl; n=1-100; m=1-100 or m+m′=2-100 and is equal to or less than the number of reactive amino groups on R 3 , and; R 6 are independently —CN, —CO 2 R 1 , —COR 1 , or —CON 1 R 1 R 1 ; wherein said substituted alkyl of 1-20 carbon atoms and said substituted alkyl of 1-100 non-hydrogen atoms are substituted alkyls having the same or different substituents selected from the group consisting of carboxylic ester, hydroxyl, alkoxy, amino, trifluoromethyl, perfluoroalkyl, alkyl, aryl, and halogen, or substituted alkyls having one or more carbon atoms other than the first carbon atom substituted with heteroatoms selected from the group consisting of oxygen, sulfur, silicon, and tin, wherein substituents in said substituted aryl are the same or different and are selected from the group consisting of carboxylic ester, hydroxyl, alkoxy, amino, secondary amino, tertiary amino, trifluoromethyl, perfluoroalkyl, alkyl, aryl, and halogen.