Silver halide photographic emulsions including dye sensitizers a

Details Silver halide photographic emulsions including dye sensitizers a Silver halide photographic emulsions including dye sensitizers a

1980-10-14

1981-12-22

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

430523, 430572, 430576, 430627, 430961, 430966, G03C 176, G03C 114

Patent

active

043071830

ABSTRACT:
Object of the invention are photographic emulsions including silver halide grains dispersed in gelatin and at least a methine dye spectral sensitizer associated with said grains, including in association therewith a supersensitizing or stabilizing amount of a polymeric compound having an aminoallylidenmalononitrile moiety. The invention further relates to photographic elements, in particular radiographic elements, comprising said emulsions. According to the invention, said polymeric compound is obtained upon copolymerization of an allyl monomer, comprising said aminoallylidenmalononitrile moiety, with an ethylenically unsaturated monomer.

REFERENCES:
patent: 2860981 (1958-11-01), Jones
patent: 4040825 (1977-08-01), Steiger et al.
patent: 4172730 (1979-10-01), Hinata et al.

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