Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Screen other than for cathode-ray tube
Patent
1991-12-06
1993-10-19
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Radiation modifying product or process of making
Screen other than for cathode-ray tube
430109, G03G 909
Patent
active
052544206
ABSTRACT:
A magenta toner for developing electrostatic images which comprises a resin and at least one kind of the dis-azo dye represented by the following formula [I]: ##STR1## wherein X represents methyl group, ethyl group or alkoxy group having 1 to 4 carbon atoms; Y represents hydrogen atom or methyl group; R.sup.1 and R.sup.2 independently represent hydrogen atom, alkyl group, alkoxy group or halogen atom; Q and Q' represent naphthol AS residue. This magenta toner is good in transparency, color fastness to light, heat resistance, bleeding resistance and spectral property and offers good color reproduction as a toner for full-color images.
A colored resin, a colored molded resin member and a color filter dyed with at least one kind of the dis-azo dye represented by Formula [I], These are good in color fastness to light, bleeding resistance, heat resistance, transparency, spectral property and durability.
REFERENCES:
patent: 3781208 (1973-12-01), Ueda et al.
patent: 4427753 (1984-01-01), Fujimura
Goodrow John
Orient Chemical Industries Ltd.
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