Eastman-kodak Company

Sterling Winthrop Inc.

Other

Albert J Mura, Jr

Ranjit C Desai

Dennis J Hlasta

Richard P Dunlap

Chakrapani Subramanyam

Neil Warren Boaz

Robert T Belly

Shari L Eiff

Gary M Russo

Malcolm R Bell

Virendra Kumar

John J Court

Lee H Latimer

Vanessa R Lum

Manohar T Saindane

David S Bailey

Eric P Lodge

Stanley W Cowan

John W Harder

Theodore W Esders

Brent A Burdick

James H Ackerman

Robert P Farrell

Paul B Merkel

James Stephen Honan

J Ramon Vargas

Brian Thomas

Bruce E Babb

Raymond P Scaringe

Patricia M Scensny

Robert W Zercie

Lee Hamilton Latimer

Catherine A Franke

A photographic element comprises a silver halide emulsion layer having associated therewith a dye forming coupler and a combination of a carbonamide compound, a phenolic compound, and an electron-rich compound. Such a combination provides improved dye stability.

Stabilized silver halide photographic element

A photographic element comprises a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I1: wherein

Coupler and image dye light-stabilizing systems

A photographic element comprises a light-sensitive silver halide emulsion layer having associated therewith (a) a 1H-pyrazolo[1,5-b][1,2,4]triazole dye-forming coupler; (b) a sulfonamide compound free of aromatic substituents directly linked to the sulfonamide nitrogen or sulfur atoms and (c) a dialkoxy substituted aromatic compound.

Silver halide photographic element and process

Photographic elements are disclosed comprising a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I:RRN&#x2014;C(O)&#x2014;(R)&#x2014;C(O)&#x2014;NRRwherein R represents a hydrocarbon linking group; p=0 or 1; and each of R, R, Rand Rindependently represents an aromatic, cyclic, linear or branched chain hydrocarbon group, or Rand Ror Rand Rcombine together to form a ring with the associated nitrogen atom to which they are attached; with the proviso (i) at least one of R, R, Rand Rcomprises an aromatic, cyclic, secondary alkyl, or otherwise or branched hydrocarbon group, or (ii) at least Rand Ror Rand Rcombine together to form a ring with the associated nitrogen atom. Photographic elements of the present invention upon exposure and photographic processing exhibit good activity and yield dye images that have unexpected and substantial improvements in the stability of the formed image dyes.

Photographic element with dye-forming coupler and image dye stabilizing coupler solvent

Photographic element containing improved stabilizer

Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan dye-forming coupler represented by Formula (I):

Photographic element containing nitrogen heterocycle substituted cyan coupler and process

Disclosed is a photographic element complising a light sensitive silver halide emulsion layer having associated therewith a cyan dye forming coupler having Formula (I):

Photographic element, dispersion, compound and process

Disclosed is a silver halide photographic element comprising a support bearing a light sensitive silver halide emulsion layer and a cyclic azole dye forming coupler associated with a stabilizer having the following Formula S: ##STR1## wherein: R.sub.1 represents an alkyl or cycloalkyl group, an alkenyl group or an aryl group;

Photographic element containing a cyclic azole coupler and an

Disclosed is a silver halide photographic element comprising a support bearing a light sensitive silver halide emulsion layer having associated therewith a cyclic azole dye forming coupler and a stabilizer combination comprising:

Photographic element containing pyrazoloazole coupler and a specific

Photographic elements are disclosed comprising a silver halide emulsion layer having associated therewith a magenta coupler and a magenta dye stabilizer compound of the formula S-I: ##STR1## wherein R.sup.0 represents an aryl group or a heterocyclic group; L.sub.1 and L.sub.2 are independently linear alkylene or cycloalkylene linking groups; and R.sup.a and R.sup.b are independently selected substituent groups at least one of which has a .sigma.* value of at least 1.8. Compounds in accordance with formula S-I act as singlet oxygen quenchers and are effective stabilizers for magenta dye images. Photographic elements of the present invention upon exposure and photographic processing yield magenta dye images that have low fading when exposed to light.

Photographic element with new singlet oxygen quenchers

4-R.sup.4 -R.sup.5 -2-Saccharinylmethyl aryl carboxylates, useful in the treatment of degenerative diseases, are prepared by reacting a 4-R.sup.4 -R.sup.5 -2-halomethylsaccharin with an arylcarboxylic acid in the presence of an acid-acceptor.

2-saccharinylmethyl aryl carboxylates useful as proteolytic enzyme

Novel 2-substituted saccharins which inhibit the enzymatic activity of proteolytic enzymes, are useful in the treatment of degenerative diseases and have the formula ##STR1## wherein: L is --O--, --S--, --SO--or --SO.sub.2 --;

Saccharin derivatives useful as proteolytic enzyme inhibitors and

Compounds having the structural formula ##STR1## wherein L is O;

Saccharin derivative proteolytic enzyme inhibitors

A compound having the formula: ##STR1## wherein Ar, R.sup.4 and R.sup.5 are defined herein have pharmaceutical utility as proteolytic enzyme inhibitors.

An aqueous-developable chromogenic photographic heat-transferable non-aqueous dye-diffusion-transfer photographic element is disclosed, wherein said element comprises radiation sensitive silver halide, a dye-providing compound that forms or releases a heat-transferable image dye upon reaction of said compound with the oxidation product of a primary amine developing agent, a hydrophilic binder, and a thermal solvent for facilitating non-aqueous diffusion transfer according to formula (I) ##STR1## wherein AH is a hydrogen bond donating group with an aqueous pK.sub.a for proton loss of greater than 6; L.sup.1 and L.sup.2 are each independently divalent linking groups consisting of groups of 1 to 12 atoms or are independently absent; m is 1, 2, or 3; Q comprises a group of 2 to 15 carbon atoms selected from the group consisting of aromatic rings, alkyl chains, alkyl rings, or ring-chain combinations, optionally substituted with substituents, Z, consisting of alkyl groups or halogens; B is a hydrogen bond accepting group with an aqueous pK.sub.a for proton gain of less than 6; n is 1 or 2; the groups AH and B cannot hydrogen bond to form a ring of either 5 or 6 atoms; R is an alkyl, aryl and alkylaryl group of from 1 to 18 carbon atoms; the calculated log of the octanol/water partition coefficient (clogP) is greater than 3 and less than 10.

Growing community of inventors

Rochester, NY, United States of America

Albert J Mura, Jr