Color developing agent, azo dye, silver halide photographic...

Details Color developing agent, azo dye, silver halide photographic... Color developing agent, azo dye, silver halide photographic...

2006-01-24

2006-01-24

Powers, Fiona T. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

C534S765000, C534S767000, C534S768000, C534S774000, C534S777000, C534S794000

Reexamination Certificate

active

06989439

ABSTRACT:
A color-developing agent of the formula (1-1):wherein X represents a hydrogen atom or a substituent, andZ represents a carbamoyl, acyl, alkoxycarbonyl, or aryloxycarbonyl group. An azo dye of the formula (2-1):wherein R1represents a hydrogen atom or a substituent, and A represents a group of atoms necessary to form the azo dye by the compound of formula (2-1). A silver halide photographic light-sensitive material containing any of the color-developing agent and the azo dye in at least one photographic constitutional layer.

REFERENCES:
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patent: 4473672 (1984-09-01), Bottrill
patent: 5874203 (1999-02-01), Morita et al.
patent: 5976756 (1999-11-01), Nakamura et al.
patent: 2002/0039708 (2002-04-01), Katoh et al.
Bast et al., Chemical Abstracts, 77:152067, 1972.
Maddison et al., Chemical Abstracts, 80:133347, 1974.
Ried et al., Helvetica Chimica Acta, 71(7), 1681-1688, 1988.

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