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Class 430/554 - 2-pyrazolin-5-one coupler


Subclass of Class 430 - Radiation imagery chemistry: process, composition, or product thereof
Definition: Compounds containing a coupler in the form of 2-pyrazolin
No. of patents: 234
Last issue date: 09/30/2008


1            
NumberTitleIssue Date
7429444Black and white photothermographic material and image forming method
The present invention provides a black and white photothermographic material including at least a photosensitive silver halide, a non-photosensitive organic silver salt, and a binder on a support, wherein the black and white photothermographic material contains a co...
09/30/2008
7250249Black and white photothermographic material
A black and white photothermographic material including, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a silver salt of a fatty acid, a reducing agent for silver ions, and a binder, wherein the black and...
07/31/2007
7244551Silver halide color photosensitive material
A silver halide color photosensitive material comprising a support and, superimposed thereon, a blue-sensitive layer unit, a green-sensitive layer unit and a red-sensitive layer unit, each of these light-sensitive layer units composed of at least one silver halide e...
07/17/2007
7223528Photothermographic material and image forming method
The present invention provides a photothermographic material having, on at least one side of a support, at least an image forming layer containing a photosensitive silver halide, a non-photosensitive organic silver salt, and a reducing agent for the organic silver s...
05/29/2007
7003011Thin disk laser with large numerical aperture pumping
An optical system has a high power diode pump source and a thin disk gain media. An optical coupler is positioned between the diode pump source and the thin disk gain media. The optical coupler produces a beam with a large numerical aperture incident on the thin dis...
02/21/2006
6649329Photothermographic material and method for forming images
The present application relates to a photothermographic material comprising, on a side of a support, (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a phenol derivative having the specific structure as reducing compound, (d) a binder,...
11/18/2003
6593069Photothermographic material and method for forming images
A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing compound represented by the following formula (1) or (2), (d) a binder and (e) a coupler compound on the same side of a suppo...
07/15/2003
6586167Method for thermally forming image for plate making and thermally processed image recording material for plate making
A method for thermally forming images for plate making, which comprises forming an image for plate making by using a thermally processed image recording material comprising a silver salt of an organic acid, a reducing agent, a color image forming material...
07/01/2003
6558886Direct view photographic element containing a particular green record
Disclosed is a silver halide direct view multicolor photographic element comprising a green record containing a green light sensitized silver halide emulsion and comprising either (a) a magenta dye-forming coupler and a cyan dye-forming coupler in an amou...
05/06/2003
6517981Color photothermographic element comprising a dye-forming system for forming a novel cyan dye
A light-sensitive silver-halide color photothermographic element comprises a typically magenta dye-forming pyrazolone coupler in the cyan record by rendering the hue of the resultant dye a cyan hue. The use of certain para-phenylenediamine developers, for...
02/11/2003
6514679Imaging materials containing peptoid substituted azole couplers
Disclosed is a photographic element comprising a silver halide emulsion and a peptoid-containing azole dye-forming coupler....
02/04/2003
6444412Photographic element with dye-forming coupler and stabilizing compound
The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith one or more dye-forming couplers and a stabilizer compound of formula (I): ##STR1## wherein R1 and R2
09/03/2002
6379879Color photographic silver halide material
A color photographic recording material having at least one spectrally sensitized silver halide emulsion layer, characterized in that said silver halide emulsion layer contains an oil former having a pKa value of less than 18 and a DIR coupler and the mat...
04/30/2002
6303261Silver halide color photographic material and image forming method using the same
Disclosed are a silver halide color photographic material having on a support a photographic element in which silver halide grains, a developing agent and a coupler capable of forming a dye by reaction with an oxidation product of the developing agent are...
10/16/2001
6197489Photographic element for color imaging
Disclosed is a color photographic element comprising at least four imaging layers including: a first light sensitive silver halide imaging layer having associated therewith a cyan image dye-forming coupler; a second light sensitive silver halide imaging layer ...
03/06/2001
6194131Silver halide color photographic lightsensitive material
A silver halide color photographic lightsensitive material comprising a compound represented by general formula (I): COUP--A--E--B (I) wherein COUP represents a coupler residue capable of coupling with a developing agent in an oxidized form, E represents an e...
02/27/2001
6171776Color photographic silver halide material
A colour photographic silver halide material in which at least one of the blue-sensitive silver halide emulsions is spectrally sensitised with a mixture of at least one seansitising dye of the formula (I) and at least one sensitising dye of the formula (I...
01/09/2001
6127108Silver halide color photographic light sensitive material
A silver halide color photographic material wherein a cyan dye image density reduction is prevented in time of bleach fixing processing or bleach fixing, and its processing method by incorporating an oil soluble organic basic compound in the silver halide...
10/03/2000
6127107Photographic recording materials and their use in redox amplification
A photographic recording material for use in redox amplification comprises a support having thereon a plurality of emulsion layers, each emulsion layer containing a color-forming coupler, and wherein the activity of the couplers is from 45 to 70% as measu...
10/03/2000
6120981Photographic element containing sulfon amido compounds that boost dye formation from photographic couplers
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 ...
09/19/2000
6057086Silver halide color photographic material
A silver halide color photographic material is disclosed, comprising a support having thereon photographic constituent layers containing at least one light-sensitive silver halide emulsion layer, wherein any one of the photographic constituent layers cont...
05/02/2000
6015657Photographic elements containing 2-equivalent pyrazolone couplers and process for their use
A photographic element contains at least one photosensitive silver halide emulsion layer having associated therewith a 5-pyrazolone photographic coupler represented by the formula: ##STR1## wherein substituents X1, X2, Y, G...
01/18/2000
6010837Silver halide photographic element comprising image dye-forming couplers
The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith an image dye-forming coupler of formula (I): ##STR1## wherein X is H or a coupling-off group, R is H; or R, R1 and R2
01/04/2000
5965341Photographic element containing particular coupler combination
The invention provides a photographic element comprising a silver halide emulsion layer sensitive to green light having associated therewith (a) a 1-aryl-3-anilino-4-benzotriazolyl-5-pyrazolone magenta dye-forming DIR coupler of a particular formula, and ...
10/12/1999
5958663Color-photographic recording material
The invention relates to a colour-photographic recording material which comprises a magenta coupler and, as stabilizer, at least one compound of the formula ##STR1## where the radicals are as defined in claim 1, and to the novel stabilizers....
09/28/1999
5958664Coupler capable of releasing a development accelerator
The present invention relates to a new coupler which is capable of releasing a development accelerator having the formula: ##STR1## wherein COUP is a coupler moiety, T is a timing group and n is 0, 1 or 2, A is a group capable of being adsorbed to the sil...
09/28/1999
5945268Silver halide color photographic light-sensitive material
Disclosed is a silver halide color photographic light sensitive material comprising a coupler represented by the following formula (I): formula (I) ##STR1## wherein Cp represents a coupler moiety; L represents a divalent linkage group; J represents -...
08/31/1999
5945267Silver halide color photographic light sensitive material
A silver halide color photographic light sensitive material is disclosed, comprising a support having thereon photographic component layers, at least one of the component layers containing a coupler represented by the following formula, and the photograph...
08/31/1999
5942381Photographic element and process employing active, stable benzotriazole-releasing DIR couplers
A photographic element comprising a silver halide emulsion layer having associated therewith a 1-phenyl-3-anilino-4-benzotriazolyl-5-pyrazolone magenta dye-forming DIR coupler of structure I: ##STR1## wherein: R1 is hydrogen, chlorine, flu...
08/24/1999
5928851Photographic couplers which release useful groups anchiomerically and their synthesis
The present invention describes an image dye-forming coupler of formula (I) ##STR1## wherein L is an oxymethylene or oxycarbonyl group; n is 0 or 1; COUP is a coupler moiety and R1 and R2 are the same or different and are groups...
07/27/1999
5879871Silver halide color photographic light sensitive material
A silver halide color photographic light sensitive material is disclosed, containing a coupler highly soluble in organic solvents and superior in dispersibility and dispersion stability in a silver halide emulsion, which is represented by the following fo...
03/09/1999
5879870Color paper post process Dmin keeping with a bis-vinylsulfonyl as the hardener and a chromanol stabilizer
Improvements in post process Dmin are provided in a photographic element that has a preferred coupler, hardener, and permanent solvent. The coupler of the element comprises between about 20 and 40 percent by weight of the coupler and oil phase components ...
03/09/1999
5853971Color photographic silver halide material
A color photographic silver halide material contains on a support at least one red-sensitive, cyan-coupling, at least one green-sensitive, magenta-coupling and at least one blue-sensitive, yellow-coupling silver halide emulsion layer together with interla...
12/29/1998
5837436Silver halide color photographic material and package thereof
A silver halide color photographic light-sensitive material comprising a support having on one surface thereof at least one light-sensitive silver halide emulsion layer and at least one light-insensitive layer, wherein the silver halide color photographic...
11/17/1998
5830628Color photographic recording material
A colour photographic silver halide material with at least two blue-sensitive, yellow-coupling silver halide emulsion layers of differing photographic sensitivity, at least two green-sensitive, magenta-coupling silver halide emulsions layers of differing ...
11/03/1998
5789146Blends of couplers with homologous ballasts
Coupler dispersions comprising an aqueous medium having dispersed therein an organic phase comprising (i) a primary photographic coupler comprising a first ballasting group containing at least 5 carbon atoms and (ii) an auxiliary photographic coupler comp...
08/04/1998
5763144Color-photographic recording material
The invention relates to a color-photographic recording material which comprises a magenta coupler and, as stabilizer, at least one compound of formula (Ia), (Ib) or (II), where the radicals are as defined in claim 1, and to the novel stabilizers....
06/09/1998
5736306Photographic silver halide material having improved spectral characteristics
Spectral properties of dye images produced from low silver halide coverage materials are improved by using dyes which are formed in the magenta, yellow and cyan image dye-forming units. These dyes have certain spectral characteristics, as determined by th...
04/07/1998
5728513Silver halide color photographic light sensitive material
A silver halide color photographic light sensitive material is disclosed, comprising a support having thereon a silver halide emulsion layer containing a sensitizing dye represented by formula (I) and a coupler represented by formula (M-I). The photograph...
03/17/1998
5723272Silver halide light-sensitive element
Silver halide light sensitive photographic elements comprising a support bearing on one side thereof at least one blue-sensitive silver halide emulsion yellow-image forming layer, at least one red-sensitive silver halide emulsion cyan-image forming layer,...
03/03/1998
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