Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1990-04-27
1993-09-14
Ramsuer, Robert W.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D23120, C07D23124
Patent
active
052450457
ABSTRACT:
Compounds suitable for use as antihalation or acutance dyes in silver halide photographic emulsions having a nucleus of the general formula (I), ##STR1## in which: Y and Z independently represent the non-metallic atoms necessary to complete a carbocyclic or heterocyclic ring or a fused ring system,
REFERENCES:
patent: 4619892 (1986-10-01), Simpson et al.
Burrows Ronald W.
Hall Kevin P.
Kirk Mark P.
Griswold Gary L.
Kirn Walter N.
Litman Mark A.
Minnesota Mining and Manufacturing Company
Ramsuer Robert W.
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