Dispersant, dispersion of color pigment, and photosensitive resist

摘要

A dispersant for preparing a dispersion of color pigments, a dispersion of color pigments including the dispersant, and a photosensitive resist including the dispersion of color pigments are disclosed. The dispersant is an amine-based dispersant including a photo-crosslinkable or photo-dimerizable group containing an anhydride functional group. The dispersant improves the developing property of photosensitive resists.

主权项

1. A dispersant, which is an amine-based dispersant comprising a group selected from an anhydride functional group-containing photo-crosslinkable group and an anhydride functional group-containing photo-dimerizable group,
wherein the amine-based dispersant is selected from alkanolamine and polyamine compounds, wherein the group selected from an anhydride functional group-containing photo-crosslinkable group and an anhydride functional group-containing photo-dimerizable group is derived from a group selected from 4-acryloyloxyethyl trimellitic anhydride, 4-methylacryloyloxyethyl trimellitic anhydride, 4-cinnamoyltriethylene glycol trimellitic anhydride, 4-allylether oxyethyl trimellitic anhydride, 4-acryloxyl oxybutyl trimellitic anhydride, 4-methylacryloxyl oxybutyl trimellitic anhydride and 4-(7-ethylene glycol coumarinyl) trimellitic anhydride.