Photographic material and process comprising a pyrazolotriazole

Details Photographic material and process comprising a pyrazolotriazole Photographic material and process comprising a pyrazolotriazole

1989-12-19

1991-06-04

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430386, 430558, G03C 738

Patent

active

050213253

ABSTRACT:
A pyrazolotriazole dye-forming coupler containing on a carbon atom in a non-coupling position a ballast group derived from and bonded through a carboxylic acid portion of an unsubstituted or substituted amino acid provides useful magenta dye images in a photographic material and process and enables simplification of manufacture of the coupler. Such couplers are useful in photographic silver halide materials and processes.

REFERENCES:
patent: 4443536 (1984-04-01), Lestina
patent: 4777121 (1988-10-01), Buckland et al.
patent: 4835094 (1989-05-01), Wolff et al.
patent: 4868100 (1989-09-01), Nishijima
patent: 4916051 (1990-04-01), Tachibana et al.
patent: 4920042 (1990-04-01), Waki et al.

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