Silver halide complexing agents of sulfones, nitriles, and onium

Details Silver halide complexing agents of sulfones, nitriles, and onium Silver halide complexing agents of sulfones, nitriles, and onium

1974-09-06

1983-01-04

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430251, 430428, 430455, 430456, G03C 554, G03C 148, G03C 538

Patent

active

043672795

ABSTRACT:
Certain organic, carbon acid silver halide complexing agents in a photographic diffusion transfer system provide suitable replacement for conventional silver halide complexing agents. Such organic, silver halide complexing agents include certain sulfones, nitriles and onium salts. These are especially useful in a silver salt diffusion transfer system. They can be employed with silver halide developing agents, such as in a monobath, and are especially suitable with a hydroxylamine silver halide developing agent. Other addenda commonly employed in photographic diffusion transfer systems can be employed in combination with these silver halide complexing agents.

REFERENCES:
patent: 3615438 (1971-10-01), Land et al.
patent: 3625699 (1971-12-01), Stewart et al.
patent: 3687662 (1972-08-01), Willems et al.
patent: 3740221 (1973-06-01), Willems et al.

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