Photographic recording material

Details Photographic recording material Photographic recording material

1993-03-10

1994-08-23

Wright, Lee C.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430558, G03C 134, G03C 738

Patent

active

053407091

ABSTRACT:
Compounds of Formula I are suitable as light stabilizers for the image dyes produced by chromogenic development from pyrazoloazole couplers ##STR1## In Formula I, R.sup.1 represents H, a group that can be split off under alkaline conditions, alkyl or aryl;

REFERENCES:
patent: 4656125 (1987-04-01), Renner et al.
patent: 4943519 (1990-07-01), Helling et al.
Patent Abstracts of Japan, vol. 12, No. 123 (P-655) (P-2859), Jan. 14, 1988 & JP-A-62 169 160 (Konishiroku), Jul. 25, 1987.
Abstract (from "Orbit") of JP-A-62 169 160.
Abstract (from "Orbit") of EP-A-0 176 845.

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