Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1978-08-02
1981-01-27
Higel, Floyd D.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260146R, 260146D, 260146T, 260147, 260154, 260163, 2604385R, 260463, 564381, 568308, 568322, 430222, C07C10704, C09B 4506, C09B 4516, G03C 554
Patent
active
042474558
ABSTRACT:
Novel yellow 2:1 azo-azo or azo-azomethine chrome complexed dye developer particularly useful in diffusion transfer 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 heterocyclic 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: 3202511 (1965-08-01), Mory et al.
patent: 3208991 (1965-09-01), Blout et al.
patent: 3299041 (1967-01-01), Green et al.
patent: 3544545 (1970-12-01), Idelson
patent: 3551406 (1970-12-01), Idelson
patent: 3597200 (1971-08-01), Idelson
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patent: 3752836 (1973-08-01), Idelson
Venkataraman, "The Chemistry of Synthetic Dyes," vol. III, p. 305 (1970).
Higel Floyd D.
Maccarone Gaetano D.
Polaroid Corporation
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