Photographic materials comprising azo sensitizing dyes

Details Photographic materials comprising azo sensitizing dyes Photographic materials comprising azo sensitizing dyes

1977-10-28

1979-03-06

Brown, J. Travis

Gas separation: apparatus

Solid sorbent apparatus

Plural diverse separating means

961141, G03C 110, G03C 102

Patent

active

041429010

ABSTRACT:
Certain azo compounds are useful as spectral sensitizing dyes in photographic silver halide materials, and particularly in photothermographic materials. These azo compounds comprise moieties capable of forming substantially insoluble silver salts thereby substantially improving sensitization of silver halides.

REFERENCES:
patent: 3642485 (1972-02-01), Oishi et al.
patent: 3870523 (1975-03-01), Okenoue et al.

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