Eastman-kodak Company

Llewellyn J Leyshon

John Demita Goddard

David T Clarke

Danuta Gibson

Brian Thomas

Paul R Buckland

Katie E Smith

Philip T Lau

Stanley W Cowan

James Stephen Honan

Paul A Burns

Christopher P Moore

Jacques Roussilhe

Thomas A Rosiek

Siu C Tsoi

Philip J Coldrick

Nigel E Milner

Judith A Bogie

Method for developing a high contrast photographic material containing a polyhydrazide nucleating agent

Disclosed is a colour photographic element containing one or more cyan dye-forming couplers, a UV absorber and a specific class of stabiliser, and an imaging process used therewith. The element exhibits improved stability.

Photographic elements containing cyan coupler UV absorber and stabilizer

High contrast photographic element containing a polyhydrazide nucleating agent

Photographic couplers having improved image dye light stability

Photographic element containing cyan dye-forming coupler

Photographic element with dye-forming coupler and stabilizing compound

In accordance with one embodiment of the invention, a photographic element is disclosed comprising a silver halide emulsion layer having associated therewith an acetanilide-based yellow dye forming coupler and a stabilizer compound of the formula S-I:

Photographic element with yellow dye-forming coupler and stabilizing compounds

High contrast photographic element containing a novel nucleator

The present invention relates to a silver halide photographic element comprising a dye-forming coupler of formula (I) ##STR1## wherein R.sup.1 is selected from an alkyl group, an aryl group, a 5-10 membered heterocyclic group containing one or more O, N or S atoms, each of which groups is unsubstituted or substituted, or a substituted amino group;

Image dye-forming couplers and photographic elements containing them

The invention provides a photographic element comprising a light sensitive silver halide emulsion layer containing a cyan dye-forming coupler of formula (I), a phenolic solvent of formula (II) and a bisphenol derivative compound of formula (III): wherein the substituents are as defined herein the specification.

Photographic elements containing cyan dye-forming coupler, coupler

A photographic yellow dye-forming coupler is represented by the formula: ##STR1## wherein: R.sup.1 is alkyl of 1 to 4 carbon atoms;

Color photographic element, compounds and process

A photographic element comprising a support having thereon at least one silver halide emulsion layer having associated therewith a dye-forming coupler and a dye stabilizer comprising a bisphenol derivative having two linked phenol rings, one of the phenolic hydroxy groups being substituted and at least one of the phenol rings being substituted. In a preferred embodiment, the bisphenol derivative has the following formula: ##STR1## wherein A is a substituted or unsubstituted alkyl, cycloalkyl, alkenyl, aryl, acyl, alkylsulfonyl or arylsulfonyl group;

Bisphenol derivative stabilizers

Pyrazolo[3,2-c]-s-triazole dye-forming couplers containing in the 6-position a substituted or unsubstituted tertiary alkyl group and in the 3-position a substituted or unsubstituted aryl group in photographic materials and processes provide dyes of improved light stability. These couplers are particularly useful in combination with alkoxybenzene dye image stabilizers.

Substituted pyrazolo[3, 2-c]-s-triazole photographic couplers and

A photographic element comprising a silver halide emulsion layer having associated therewith a compound having the formula ##STR1## wherein Y is --O--, --S--, --NH-- or --NR.sup.1 --;

Heterocyclic phosphorus compound stabilizers

Growing community of inventors

Watford, United Kingdom

Llewellyn J Leyshon