Dispersant, dispersion of color pigment, and photosensitive resist
AssigneeBoe Technology Group Co., Ltd.
InventorWei Deng
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Abstract
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.
Claims13
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.
A method of preparing a dispersant for preparing a dispersion of color pigments, said method comprising:
- reacting an amine-based dispersant with a group selected from an anhydride functional group-containing photo-crosslinkable group and an anhydride functional group-containing photo-dimerizable group to prepare the dispersant for preparing the dispersion of color pigments,
- 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.
Dependencies are inferred from the claim text.