Use of heterocyclic nitrogen addenda to reduce continued couplin

Details Use of heterocyclic nitrogen addenda to reduce continued couplin Use of heterocyclic nitrogen addenda to reduce continued couplin

1991-11-25

1995-08-15

Wright, Lee C.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Stabilizing

430382, 430387, 430544, 430551, 430555, G03C 7384, G03C 7392

Patent

active

054418518

ABSTRACT:
A photographic element with a support and a silver halide emulsion layer includes a two-equivalent pyrazolone magenta dye-forming coupler and a heterocyclic nitrogen addendum which is a protic imidazole or a pyridine. The heterocylic nitrogen compound reduces continued coupling of two-equivalent magenta dye-forming couplers after removal from a developer solution, obviating the need for a stop bath after the development stage.

REFERENCES:
patent: 4298683 (1981-11-01), Becker et al.
patent: 4416977 (1983-11-01), Ohashi et al.
patent: 4483918 (1984-11-01), Sakai et al.
patent: 4503139 (1985-03-01), Bartels-Keith et al.
patent: 4555479 (1985-11-01), Sakai et al.
patent: 4585728 (1986-04-01), Furutachi et al.
patent: 4990438 (1991-02-01), Ogi et al.
patent: 5049483 (1991-09-01), Yatsuyanagi et al.
patent: 5120637 (1992-06-01), Furusawa et al.

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