Silver halide color light sensitive material

Details Silver halide color light sensitive material Silver halide color light sensitive material

1987-01-14

1988-03-29

Louie, Won H.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430543, 430955, 430956, 430957, 430958, 430505, 430222, 430598, 430555, 430553, 430557, 430558, G03C 140

Patent

active

047343575

ABSTRACT:
A silver halide color light-sensitive material is described, which is increased in sensitivity, is adapted to form an image of high contrast, or is accelerated in development by incorporating a small amount of a specific compound which imagewise releases a foggant or a development accelerator. This compound is represented by the formula: Coup-(TIME).sub.n -FA (wherein Coup represents a coupler radical capable of undergoing a coupling reaction with an oxidized product of an aromatic primary amine developing agent; TIME represents a timing group which is eliminated from Coup by the coupling reaction and, thereafter, releases FA; n is 0 or 1; and FA represents a group which is eliminated from Coup in the coupling reaction when n is 0, whereas FA is released from TIME when n is 1. The FA has adsorption properties with respect to silver halide grains and also has a substantial fogging action with respect to the silver halide grains).

REFERENCES:
patent: 4355100 (1982-10-01), Sugita et al.
patent: 4414308 (1983-11-01), Hamada
patent: 4518682 (1985-05-01), Kobayashi
patent: 4628024 (1986-12-01), Kobayashi et al.

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