Patent ID: 11859106
Assignee: BASF COATINGS GMBH
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 1:
2. The polymeric pigment dispersant according to claim 1, wherein the at least one moiety of the formula (I) is obtained by reacting at least one compound of formula (II), wherein
R2 is selected from the group consisting of a hydrogen; a linear or a branched, substituted C1-C14 alkyl substituted with one —C(═O)—OH group, and a linear or a branched, substituted C2-C14 alkenyl substituted with one —C(═O)—OH group;
R3 is selected from the group consisting of a linear or a branched, substituted C1-C14 alkyl and a linear or branched, substituted C2-C14 alkenyl, which are each substituted with one —C(═O)—OH group; or
R2 and R3 together with the carbon atoms to which they are bonded form a substituted phenyl or a substituted C3-C10 cycloalkyl or a substituted C4-C10 cycloalkenyl which are each substituted with one —C(═O)—OH group;
with at least one compound of formula (III)

R1—NH2  (III)

wherein
R1 is selected from the group consisting of naphthyl, anthracenyl and phenanthrenyl which are unsubstituted or substituted with 1, 2, 3, 4 or 5 substituents independently of each other, selected from the group consisting of F, Cl, Br, I, —NO2, —CN, —OH, —O—C1-C6-alkyl, —C(═O)-C1-C6-alkyl, —C(═O)—O—C1-C6-alkyl, —C(═O)-O-phenyl, —CH2-C(═O)-C1-C6-alkyl, —C(═O)-NH(C1-C6)alkyl, —C(═O)-NH-phenyl, and -C1-C6-alkyl; wherein—C1C6-alkyl is itself unsubstituted or substituted with 1, 2, 3, 4 or 5 substituents independently of each other, selected from the group consisting of F, Cl, Br, I, —CN, —OH, —O—CF3, —O—CH3 and —O—C2H5;
optionally in the presence of at least one solvent.