Modified carbon products and ink jet inks, inks and coatings containing modified carbon products

Abstract

A modified carbon product is described which comprises carbon having attached at least one organic group. The organic group comprises a) at least one aromatic group or a C.sub.1 -C.sub.12 alkyl group and b) at least one ionic group, at least one ionizable group, or a mixture of an ionic group and an ionizable group. The aromatic group or the C.sub.1 -C.sub.12 alkyl group of the organic group is directly attached to the carbon and the organic group is present at a level of from about 0.10 to about 4.0 micromoles/m.sup.2 of the carbon used based on nitrogen surface area of the carbon. Also described are aqueous and non-aqueous inks and coatings and ink jet ink compositions containing the modified carbon product. A method to increase the flow of an ink, as measured by glass plate flow, by incorporating the modified carbon product as part of the ink is also disclosed as well as a method to improve the waterfastness of a print imaged by an ink composition. Lastly, non-aqueous ink and coating formulations are described which contain an appropriate solvent and a modified carbon product comprising carbon having attached at least one organic group, wherein the organic group comprises a) at least one aromatic group or C.sub.1 -C.sub.12 alkyl group, and b) at least one ionic group, at least one ionizable group, or a mixture of an ionic group and an ionizable group, wherein the organic group is present in any amount.

Dependencies are inferred from the claim text.