| 摘要 |
A colored fluid for use in a display device comprises at least one first pigment, at least one non-polar solvent, and at least one polymeric dispersant comprising the formula:;(Z—U)x—P—(V—W)y.;P is a residue of a second pigment, which may be the same or different from the first pigment. Each Z is independently a non-polar polymer. Each U and V are various linking groups. Each W is independently selected from H, OH, SH, alkyl, aryl, alkylaryl, ammonium, alkylammonium, arylammonium, alkali metal, and alkaline earth metal. Each V—W bond is a covalent or ionic bond, x is an integer greater than or equal to 1, and y is an integer greater than or equal to 1, and wherein for the colored fluid, at least one polymeric dispersant comprises an ionic (V—W) moiety. |
| 主权项 |
1. A colored fluid for use in a display device comprising:
at least one first pigment; at least one non-polar solvent; at least one polymeric dispersant comprising the formula:
(Z—U)x—P—(V—W)y wherein P is a residue of a second pigment; each Z is independently a non-polar polymer; each U and V are independently selected from R, RC(O)O, ROC(O), RC(O)NR1, RNR1C(O), RSO2NR1, RSO3, ROSO3, RSO2, RO, RS, RNR1, ═N—, RNHC(O)NR1, RNHC(O)O, ROC(O)NH, RC(O)OCH2CH(OH)CH2, ROCH2CH(OH)CH2, RNR1CH2CH(OH)CH2, RPO(OR1)O, ROPO(OR1)O, and anionic forms thereof, where R is independently selected from a single bond, alkyl, aryl, alkylaryl, or a heterocycle, and each R1 is independently selected from H, alkyl, aryl, or alkylaryl, provided that there is at least one V—W that is not a single bonded hydrogen; each W is independently selected from H, OH, SH, alkyl, aryl, alkylaryl, ammonium, alkylammonium, arylammonium, alkali metal, and alkaline earth metal; wherein each V—W bond is a covalent or ionic bond; x is an integer greater than or equal to 1, and y is an integer greater than or equal to 1; and wherein for the colored fluid, at least one polymeric dispersant comprises an ionic (V—W) moiety. |
