Photographic color developer compositions

Details Photographic color developer compositions Photographic color developer compositions

1979-12-10

1981-02-24

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Color imaging process

430433, 430444, 430467, 430488, 430489, 430490, 430491, G03C 530

Patent

active

042528925

ABSTRACT:
A poly(alkyleneimine), such as poly(ethyleneimine), is incorporated in a photographic color developer composition containing a primary aromatic amino color developing agent in order to protect the developing agent against aerial oxidation. The poly(alkyleneimine) also functions to reduce tar formation and retard stain growth and provides a supplemental source of alkalinity in the color developer composition.

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patent: 4170478 (1979-10-01), Case et al.
Research Disclosure, vol. 164, Item 16480, Dec. 1977.

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