US 11,859,106 B2
Pigment dispersant
Shampa R. Samanta, Southfield, MI (US); Chintankumar Patel, Mangalore (IN); Colin Wade, Southfield, MI (US); and Benjamin Georg Robert Mohr, Ludwigshafen (DE)
Assigned to BASF COATINGS GMBH, Muenster (DE)
Appl. No. 17/270,496
Filed by BASF Coatings GmbH, Münster (DE)
PCT Filed Aug. 8, 2019, PCT No. PCT/EP2019/071293
§ 371(c)(1), (2) Date Feb. 23, 2021,
PCT Pub. No. WO2020/043453, PCT Pub. Date Mar. 5, 2020.
Claims priority of application No. 18191460 (EP), filed on Aug. 29, 2018.
Prior Publication US 2021/0324210 A1, Oct. 21, 2021
Int. Cl. C09D 7/65 (2018.01); C08F 220/18 (2006.01); C08F 220/32 (2006.01); C08F 212/08 (2006.01); C08F 220/20 (2006.01); C08F 265/04 (2006.01); C08F 293/00 (2006.01); C08K 5/09 (2006.01); C08K 5/3417 (2006.01); C09D 11/10 (2014.01); C09D 17/00 (2006.01)
CPC C09D 7/65 (2018.01) [C08F 212/08 (2013.01); C08F 220/1804 (2020.02); C08F 220/1808 (2020.02); C08F 220/20 (2013.01); C08F 220/325 (2020.02); C08F 265/04 (2013.01); C08F 293/005 (2013.01); C08K 5/09 (2013.01); C08K 5/3417 (2013.01); C09D 11/10 (2013.01); C09D 17/001 (2013.01); C09D 17/002 (2013.01)] 12 Claims
 
1. A polymeric pigment dispersant comprising a polymer backbone (P) and at least one moiety of a formula (I):

OG Complex Work Unit Chemistry
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.