Dye stability with solid coupler solvent

Details Dye stability with solid coupler solvent Dye stability with solid coupler solvent

1992-12-23

1995-04-11

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430449, 430377, 430551, 430610, G03C 732

Patent

active

054057361

ABSTRACT:
The invention provides a photographic dispersion for inducing dye stability in the eventual photographic product. The invention provides in a first aspect a photographic dispersion comprising a photographic coupler and a solvent therefore wherein the solvent is solid at its temperature of fade concern thereby to promote dye stability in use.
The invention also provides a photographic coupler and a solvent therefor wherein the solvent is an alkyl alcohol or an optionally substituted dialkyl or diaryl phosphate. The coupler may have a ballasted chain having a matched molecular structure thereby to further promote dye stability in use.

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