Patent ID: 6426416
Filing Date: 2002-07-30
Classification: C09B

Abstract:
A colorant having the formula:A[SO2N(R1)â€”(Y)]1-6 wherein A is an anthraquinone colored chromophoric group; Y is a polymeric substituent having from 4 to 200 epoxide reactant residues selected from â€”CH2CH2Oâ€”,â€”CH2CH(CH3)Oâ€”,â€”CH2CH(C2H5)Oâ€” and mixtures thereof, and further provided that when the number of [SO2N(R1)â€”(Y)] substituents is from 2-6, the total of all said residues per colorant molecule is from 4 to 600; and R1 is selected from hydrogen, Y, C1-12 alkyl, aryl and cycloalkyl, or R1 in combination with Y and N completes a 5-7 membered ring.