MODIFIED PIGMENTS HAVING REDUCED PHOSPHATE RELEASE, AND DISPERSIONS AND INKJET INK COMPOSITIONS THEREFROM

摘要

The present invention relates to a modified pigment comprising a pigment having attached at least one geminal bisphosphonic acid group, partial esters thereof, or salts thereof. The modified pigments have a low phosphate release value. Dispersions and inkjet ink compositions comprising these modified pigments are also disclosed.