Patent ID: 7371273

Claim:
A latex-containing ink-jet ink, comprising: a) a liquid vehicle; b) a colorant dissolved or dispersed in the liquid vehicle; c) latex particulates dispersed in the liquid vehicle, said latex particulates formed by the steps of: i. preparing a monomer emulsion including an aqueous phase and an organic monomer phase, said organic monomer phase including at least one blocked acid monomer, ii. polymerizing monomers of the organic monomer phase to form blocked acid latex particulates dispersed in the aqueous phase, and iii. unblocking the blocked acid latex particulates to form acidified latex particulates and released blocking groups; and d) released blocking groups wherein the blocked acid monomer includes a blocked strong acid group selected from the group consisting of blocked phosphonic acid, blocked phosphinic acid, blocked pyrophosphoric acid, blocked boronic acid, blocked sulfonic acid, blocked sulfinic acid, blocked phosphorous acid, blocked hydroxamic acid, and blocked cyanuric acid.