Silver halide photographic light sensitive material excellent in

Details Silver halide photographic light sensitive material excellent in Silver halide photographic light sensitive material excellent in

1991-02-22

1992-10-06

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430569, 430567, 430584, 430613, 430614, 430621, 430631, G03C 1005, G03C 108

Patent

active

051531160

ABSTRACT:
There is disclosed a silver halide photographic light-sensitive material comprising a support and provided thereon, at least one silver halide light-sensitive layer spectrally sensitized by adding a spectral sensitizing dye during at least one process selected from a grain formation process, a physical reopening process and a desalting process, wherein said light-sensitive material contains at least one selected from the compounds represented by following Formula A: ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aralkyl group, an alkoxy group, an aryl group, a heterocyclic group, a carbamoyl group, a thiocarbamoyl group, and a sulfamoyl group; R.sub.2 and R.sub.3 represent independently a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an aryl group, a cyano group, an alkylthio group, an arylthio group, an alkylsulfoxide group, an alkylsulfonyl group, and a heterocyclic group, provided that R.sub.2 and R.sub.3 may combine each other to form a benzene ring.

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patent: 4791053 (1988-12-01), Ogawa
patent: 4828922 (1989-05-01), Ihama et al.
patent: 4847191 (1989-07-01), Grzeskowiak

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