Silver halide photographic emulsion

Details Silver halide photographic emulsion Silver halide photographic emulsion

1997-10-22

2000-07-18

McPherson, John A.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430604, G03C 1035

Patent

active

060905352

ABSTRACT:
A silver halide photographic emulsion comprise silver chlorobromide or silver iodobromochloride grains, each grain having a silver chloride region in an amount of 0.3 to 50 mol % based on the total silver amount of the grain, and each grain containing at least one ion selected from the group consisting of ions of Ga, In and Group 8, Group 9 and Group 10 metals. A silver halide photographic emulsion that is occupied by tabular grains having an equivalent circular diameter of 0.1 to 0.6 .mu.m in an amount of at least 70% in number, wherein each of the tabular grains has a multilayer structure comprising at least two layers, and at least one of the layers contains chloride in an amount of 0.4 to 20 mol % based on the amount of silver forming the layer, and each of the grains has a silver halide protrusion.

REFERENCES:
patent: 4435501 (1984-03-01), Maskasky
patent: 4917991 (1990-04-01), Tosaka et al.
patent: 4937180 (1990-06-01), Marchetti et al.
patent: 4945035 (1990-07-01), Keevert, Jr. et al.
patent: 5494789 (1996-02-01), Daubendiek et al.
patent: 5503970 (1996-04-01), Olm et al.

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