Yellow 2:1 chrome complexed dye developers

Details Yellow 2:1 chrome complexed dye developers Yellow 2:1 chrome complexed dye developers

1977-09-23

1979-11-13

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...

430563, G03C 700, G03C 140, G03C 110, G03C 554

Patent

active

041742214

ABSTRACT:
Novel yellow 2:1 chrome complexed dye developer particularly useful in photographic products and processes are presented by this invention. The novel 2:1 chrome complexed dye developers have the following structure: ##STR1## where each A is a phenyl radical; each B is a phenyl or nitrogen containing heterocylic radical; Y is a silver halide developing substituent; each n is 0 or 1 but at least one n must be 1; R is N or CH; R.sup.1 is ##STR2## if R is N but R.sup.1 is --O--if R is CH and X is a cation.

REFERENCES:
patent: 3218164 (1965-11-01), Green et al.
patent: 3597200 (1971-08-01), Idelson
patent: 3705184 (1972-12-01), Goulston et al.
patent: 3752836 (1973-08-01), Idelson

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