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US 2008/0173847 A1Published application
Fluorinated dyes or colorants and their uses
AssigneeSiPix Imaging, Inc.
InventorsJin Yang, Kai-Chia Feng, Ying-Syi Li, HongMei Zang, Hong Wang, Chien-Hung Chou, Rong-Chang Liang
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Abstract
The present invention relates to novel fluorinated dyes or colorants having high solubility and low viscosity in halogenated, especially fluorinated, solvents. The dyes or colorants of the present invention have shown to improve the performance of electrophoretic displays. The invention is particularly directed to a fluorinated porphyrin dye or colorant expressed by Formula (VII).
Claims16
A fluorinated porphyrin dye or colorant expressed by Formula (VII):
- wherein:
- m, n, p and q are independently 0-5;
- M is a divalent metal, an oxometal group, a halogenometal group or a hydroxymetal group;
- R1s and R2s are independently hydrogen, halogen, alkyl, heteroalkyl, aryl, heteroaryl, or a halogenated derivative of alkyl, heteroalkyl, aryl, or heteroaryl, R′O—, R′S—, R′R″N—, R′C(O)—, R′OC(O—, R′C(O)O—, R′C(O)NR″—, R′R″NC(O)—, R′HC(O)NR″—, R′SO2NR″—, R′R″NSO2—, wherein R′ and R″ are independently hydrogen, alkyl, heteroalkyl, aryl, heteroaryl, or a halogenated derivative of alkyl, heteroalkyl, aryl, or heteroaryl;
- or R1s and R2s are independently Rf-A-;
- Rf is a fluorinated alkyl, fluorinated heteroalkyl, fluorinated aryl, fluorinated heteroaryl, or a low/medium molecular weight fluorinated polymeric or oligomeric moiety;
- and
- A is absent or a linking chain comprising one or more of the following, connected together:
- —O—, —S—, —SO—, —SO2—, —SO2NR′—, —NR′—, —NR′CO—, —NR′COO—, —NR′CONR″—, —NR′CS—, —NR′CSO—, —NR′CSNR″—, —OC(O)—, —OCO2—, —C(O)O—, —OC(O)N′R—, alkylene, arylene, a halogenated derivative of alkylene, and a halogenated derivative of arylene;
- provided that the dyes or colorants Formula (VII) comprise at least about 25% by weight of fluorine.
7 more elements
Dependencies are inferred from the claim text.