Patent ID: 8735533

Claim:
A polymeric violet anthraquinone colorant comprising a compound represented by structure (IV-A): wherein: A 1 is selected from the group consisting of hydrogen, alkyl, hydroxyalkyl, polyoxyalkylene, and aryl; A 2 is selected from the group consisting of alkyl or aryl having no polymer chains; a polyoxyalkylene moiety or an aryl linked polyoxyalkylene moiety with greater than three repeating units and terminated with a hydroxyl or alkyl or aryl; and an aryl group further substituted by Y-A 3 wherein the aryl group is selected from phenylene or a substituted phenylene moiety; Y is a linking group and is selected from the group consisting of oxygen, nitrogen, sulfonyl, sulfonamido, and carboxyl; A 3 is a polyoxyalkylene moiety terminated with a hydroxyl or alkyl or aryl group; and R 1 , R 2 , R 3 , R 4 , and R 5 are independently selected from the group consisting of hydrogen, C 1 -C 20 alkyl, C 1 -C 20 alkoxy, and Q-E, wherein Q is a linking group selected from the group consisting of N, O, S, SO 2 , SO 3 , CO 2 ; SO 2 N, alkyl, and alkoxy, and E is a polymer chain and end group that conforms to the structure of general formula (VI), as shown below: [polyoxyalkyene constituent] z R′ (VI) wherein z is 1 or 2; wherein the polyoxyalkylene constituent is selected from the group consisting of one or more monomers selected from a C 2-20 alkyleneoxy group, a glycidol group, a glycidyl group, or mixtures thereof; wherein R′ is an end group selected from the group consisting of hydrogen, C 1-20 alkyl, C 1-20 alkylester, halo, hydroxyl, thio, cyano, sulfonyl, sulfo, sulfato, aryl, nitro, carboxyl, C 1-20 alkoxy, amino, C 1-20 alkylamino, acrylamino, C 1-20 alkylthio, C 1-20 alkylsulfonyl, C 1-20 alkylphenyl, phosphonyl, C 1-20 alkylphosphonyl, C 1-20 alkoxycarbonyl, and phenylthio; wherein at least one of R 1 , R 2 , R 3 , R 4 , R 5 is Q-E; and A 5 A 8 are independently selected from the group consisting of hydrogen, halogen, nitro, amino, alkylamino, arylamino moieties, and combinations thereof.