Yellow azomethine dye developers

Details Yellow azomethine dye developers Yellow azomethine dye developers

1977-09-23

1979-09-04

Schilling, Richard C.

Gas separation: apparatus

Electric field separation apparatus

Plural diverse electric fields

96 29D, 96 99, G03C 554, G03C 140, G03C 110

Patent

active

041667417

ABSTRACT:
Novel yellow ortho, ortho' dihydroxy azomethine dyes and metal complexes of such dyes which are particularly useful in photographic products and processes are presented by this invention. The novel yellow ortho, ortho' dihydroxy azomethine dyes have the following structural formula: ##STR1## WHERE N' IS THE INTEGER 1-8 AND M' IS THE INTEGER 1 OR 2.

REFERENCES:
patent: 3255001 (1966-06-01), Blout 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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