Silver halide photographic materials

Details Silver halide photographic materials Silver halide photographic materials

1989-12-20

1992-08-11

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, 430600, 430613, G03C 1015

Patent

active

051378035

ABSTRACT:
Disclosed is a silver halide photographic material. The material comprises a support and at least one emulsion layer, wherein the emulsion layer includes a silver chlorobromide emulsion. The silver chlorobromide emulsion has been obtained by chemically sensitizing de-salted silver chlorobromide grains in the presence of a nucleic acid or degradation product thereof at a pAg value ranging from about 6.5 to 7.5. The silver chlorobromide grains have been obtained by subjecting the surface of silver halide grains to halogen conversion, which silver halide grains are essentially silver iodide free and have a plurality of phases of which the halogen compositions substanially differ from each other.

REFERENCES:
patent: 3622318 (1971-11-01), Evans
patent: 3982948 (1976-09-01), Sato et al.
patent: 4075020 (1978-02-01), Saleck et al.
patent: 4865962 (1989-09-01), Hasebe et al.
patent: 4892809 (1990-01-01), Momoki

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