Patent ID: 7872069

Claim:
A dispersion comprising: (a) an aqueous continuous phase, and (b) a discontinuous phase comprising a polyurethane polymer or polyurethane polymer segment that is the product of the reaction of a reactant mixture comprising: (i) a polyisocyanate, (ii) an internal surfactant, and (iii) an active hydrogen-terminated colorant, the active hydrogen-terminated colorant being selected from the group consisting of colorants conforming to structure (I) and structure (III) wherein R 1 or R 1 -[E] m is an organic chromophore, E is a linking moiety selected from the group consisting of nitrogen, oxygen, sulfur, a sulfite group, a sulfonamide group, and a carboxyl group, and n and m are independently selected from the group consisting of integers between and including 1 and 5; wherein R 4 or R 4 (G) h is an organic chromophore, G is selected from the group consisting of SO 3 − and CO 2 − , each R 5 is independently selected from the group consisting of hydrogen, alkyl groups, and aryl groups, M is selected from the group consisting of nitrogen atoms and phosphorous atoms, h is an integer between and including 1 and 4, k is an integer between and including 0 and 5, j is an integer between and including 1 and 6, and the sum of k and j is equal to 4 when M is a nitrogen atom and 6 when M is a phosphorous atom; wherein each Z is a divalent organic moiety independently selected from the group consisting of C 1 -C 20 alkyl moieties, aryl moieties, alkoxyl moieties, and oligomeric constituents, wherein the oligomeric constituents are selected from the group consisting of: (A) oligomers comprising at least three monomers selected from the group consisting of C 2 -C 20 alkyleneoxy groups, glycidol groups, and glycidyl groups, (B) aliphatic oligomeric esters conforming to structure (II) wherein R 2 and R 3 are independently selected from the group consisting of hydrogen and C 1 -C 10 alkyl groups, f is an integer between and including 1 and 10, and g is any positive integer or fraction between and including 1 and 20, and (C) combinations of (A) and (B); wherein each X is an end group independently selected from the group consisting of hydrogen, a hydroxyl group, a sulfhydryl group, thiol groups, amine groups, alkyl groups, aryl groups, alkyl ester groups, aryl ester groups, organic sulfonate groups, organic sulfate groups, and amide groups; wherein at least one —Z—X constituent terminates in a group selected from the group consisting of a hydroxyl group, a sulfhydryl group, thiol groups, primary amine groups, secondary amine groups, primary amide groups, and secondary amide groups; and wherein the reactant mixture has a weight, and the active hydrogen-terminated colorant comprises greater than 20% of the weight of the reactant mixture.