Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1986-10-07
1988-04-12
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430223, 430553, 430555, 430557, 430558, 430955, 430957, 430959, G03C 732
Patent
active
047374519
ABSTRACT:
A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, said color photographic material containing a compound capable of releasing a group upon reaction with an oxidation product of a developing agent, the resulting group is oxidized and undergoes a ring cleavage reaction whereby a photograhically useful group is cleaved.
The compound used in the present invention is capable of releasing a photograhically useful group through at least a two-step reaction, and the amount of the photographically useful group released is controlled depending on a concentration of the oxidation product of a developing agent. The silver halide color photographic material containing the compound either provides a color image having good image qualities such as sharpness, graininess, and color reproducibility, etc., or exhibits high sensitivity.
REFERENCES:
patent: 4248962 (1981-02-01), Lau
patent: 4409323 (1983-10-01), Sato
Doody Patrick A.
Fuji Photo Film Co. , Ltd.
Michl Paul R.
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