Eastman-kodak Company

Jared B Mooberry

David T Southby

James J Seifert

John Texter

Stephen P Singer

Wojciech K Slusarek

David Hoke

David Howard Levy

Xiqiang K Yang

Mark Edward Irving

Thomas R Welter

Lyn Marie Irving

James Henry Reynolds

Zheng Zhi Wu

Paul B Merkel

Lawrence G Anderson

Jerrold N Poslusny

Chang-Kyu Kim

Frank D Coms

Kevin P Dockery

Thomas E Gompf

William C Archie, Jr

Howell Allen Hammond

John L Pawlak

Robert J Ross

Louis Elbert Friedrich

John M Buchanan

Daniel L Kapp

David S Bailey

James P Merrill

Zbyslaw R Owczarczyk

Steven M Bonser

Roland G Willis

Lelia Cosimbescu

Brian H Johnston

William N Washburn

Gary S Proehl

William B Travis

Jeffrey W Schmoeger

J Michael Buchanan

Ewell R Cook

David Hales Bown

David K Southby

Zheng Zi Wu

Kathleen M Yahn

This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein:

Imaging element containing a blocked photographically useful compound

Photographic element containing a high-dye-yield coupler for producing a yellow hue

Color photothermographic elements comprising blocked developing agents

Scannable photographic element containing high extinction high-dye-yield cyan couplers

Photographic elements containing aryloxypyrazolone couplers and sulfur containing stabilizers

Disclosed is a carbamyl chloride of an aminoarylcarbonyl compound having the structural formula I:

Preparation of high dye-yield couplers and intermediates useful therein

Disclosed is a photographic element containing a light sensitive silver halide emulsion layer having associated therewith a coupler represented by Formula I: ##STR1## wherein COUP is a coupler parent group capable of reacting with an oxidized developer to form a first dye and is bonded at a coupling position to the group ##STR2## wherein X is a or NSO.sub.2 R; R is an alkyl or aryl group; and DYE is a releasable second dye that is after release the same color as the first dye and is linked to OC.dbd.X by a moiety of the DYE having Formula (IA): ##STR3## wherein R.sup.2 is a substituent; provided there is contained in the coupler of Formula I at least one group of Formula IB:

Photographic element containing high dye-yield couplers

A method of making an alkylaminoarylcarbonyl compound having Formula I: ##STR1## wherein R is an alkyl group;

Processes for making and using alkylaminoarylcarbonyl compounds

Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a dye-foaming coupler compound and a sulfonamido compound (a) bearing on the sulfur atom of the sulfonamido group an alkyl group and (b) bearing on the nitrogen atom of the sulfonamido group both a hydrogen atom that exhibits a pKa value of less than 9 and a second substituent that is either (1) an aryl group containing one or more electron withdrawing substituents for which the sum of the Hammett's values (.SIGMA..sigma..sub.p) is greater than 0.5, or (2) a heteroaryl group.

Photographic element containing sulfon amido compounds that boost dye

The present invention provides an acetate ester compound of formula (III), ##STR1## a process for synthesizing compound (III), and a process for using that compound to prepare a pyrazolone compound, where the substituent definitions are as defined in the Summary of the Invention.

Acetate ester compounds

The invention provides a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a 1-aryl-2-pyrazolin-5-one coupler bearing a 4-aryloxy coupling-off group containing a group capable of releasing a photographically useful group (PUG) wherein: (1) the 1-aryl-2-pyrazolin-5-one ring contains a 3-cyano substituent or a substituent linked to the 3-position by an acyl group, thio group, sulfoxide group, sulfone group, or a tetrahedral carbon atom which tetrahedral carbon atom has bonded thereto three other atoms or substituent groups for which the sum of the .sigma.* values is at least 1.5; and (2) the 4-aryloxy coupling-off group:

Photographic element containing pyrazolone pug releasing coupler and

A photographic element comprises a light-sensitive silver halide emulsion layer having associated therewith a coupler based on a 1-aryl-2-pyrazolin-5-one ring and represented by formula I: ##STR1## wherein: Ar.sup.1 and Ar.sup.2 are each independently aryl groups comprising a carboaromatic or heteroaromatic ring; X, Y, and Z are bonded to a carbon atom alpha to the 3-position and are independently selected from the group consisting of hydrogen and substituent groups such that the sum of the Taft .sigma.* values for X, Y, and Z is at least 1.5; R represents n independently selected substituent groups bonded to the Ar.sup.2 ring, provided that the sum of the appropriate Hammett .sigma. constants for all R substituent groups is at least 0.3, and provided further that two of X, Y, and Z may join to form a ring; and n is 0 to 5; provided that R may not be a nitro group ortho to the oxygen atom bonding Ar.sup.2 to the 1-aryl-2-pyrazolin-5-one ring.

Photographic element containing a stable aryloxypyrazolone coupler and

A method is disclosed for developing an image in a photographic element comprising a support, a silver halide emulsion containing an imagewise distribution of developable silver halide grains, and a blocked photographically useful compound comprising a photographically useful group and a blocking group capable of releasing the photographically useful group upon processing the photographic element in the presence of a peroxide, wherein the blocking group comprises an electrophilic group which is solely capable of undergoing a nucleophilic displacement reaction, the electrophilic group being bonded directly or through a releasable timing group to the photographically useful group, with the proviso that when the photographically useful group is a development inhibitor, the blocking group is bonded to the photographically useful group through at least one releasable timing group. The method comprises the step of contacting the photographic element with a processing solution comprising a peroxide.

Blocked photographically useful compounds for use with

Growing community of inventors

Rochester, NY, United States of America

Jared B Mooberry