Photographic yellow dye-forming couplers and silver halide color

Details Photographic yellow dye-forming couplers and silver halide color Photographic yellow dye-forming couplers and silver halide color

1995-12-07

1997-03-18

Letscher, Geraldine

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430556, 430543, 430546, 430551, 430502, 430503, G03C 108, G03C 726, G03C 732

Patent

active

056121741

ABSTRACT:
Disclosed are a photographic yellow dye-forming coupler of formula (I) and a photographic material containing one or more such yellow couplers. ##STR1## wherein R.sub.1 represents an alkyl group, a cycloalkyl group, an aryl group, an alkylamino group, an anilino group, or a heterocyclic group; R.sub.2 represents a hydrogen atom, a halogen atom, an aliphatic-oxy group, an aryloxy group, an aliphatic group, or an amino group; R.sub.3 represents an alkenyl group; R.sub.4 represents a substituent; m represents an integer of from 0 to 3; and X represents a hydrogen atom, or a group capable of being split off from the formula by the coupling reaction with an oxidation product of an aromatic primary amine developing agent. The couplers have a high solubility in solvents, and emulsions containing the couplers can be stored in cool for a long period of time without worsening the coloring property of the couplers.

REFERENCES:
patent: 5066574 (1991-11-01), Kubota et al.
patent: 5215877 (1993-06-01), Tomotake et al.
patent: 5399474 (1995-03-01), Tomotake et al.

Affiliated with

Also associated with

Rating

Photographic yellow dye-forming couplers and silver halide color does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photographic yellow dye-forming couplers and silver halide color, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic yellow dye-forming couplers and silver halide color will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1705101