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

Claim 0:
1. A polymeric pigment dispersant comprising a polymer backbone (P) and at least one moiety of a formula (I):, 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;
R2 is selected from the group consisting of a hydrogen; a linear or a branched, substituted C1-C14 alkyl substituted with one —C(═O)—O-group, and a linear or a branched, substituted C2-C14 alkenyl substituted with one —C(═O)—O-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)—O-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)—O-group; and
whereby the at least one moiety of the formula (I) is bonded to the polymer backbone (P) via the —C(═O)—O-group.