| Patent Number |
Title Of Patent |
Date Issued |
| T997004 |
Acylhydrazinophenylthiourea nucleating agents and photographic emulsions and elements containing |
August 5, 1980 |
| Novel 3,3-disubstituted acylhydrazinophenylthiourea nucleating agents are disclosed as well as silver halide photographic emulsions and elements containing silver halide grains capable of forming an internal latent image having the nucleating agents adsorbed to the surface of the silver |
| T965005 |
Nucleating agents, radiation-sensitive compositions and photographic elements |
December 6, 1977 |
| heterocyclic N-(acylhydrazinophenyl)thioamide nucleating agents are disclosed as well as radiation-sensitive compositions and elements containing such nucleating agents in combination with silver halide grains capable of forming an internal latent image. The elements can be used to f |
| 6255045 |
Color photographic element containing improved polymeric disulfonamidophenol for scavenging oxid |
July 3, 2001 |
| This invention relates to a photographic element comprising a support, a radiation sensitive silver halide emulsion layer and a water dispersible polymeric disulfonamidophenol that is substantially immobile in the element. The invention provides color photographic elements that exhibit |
| 6107017 |
Photographic elements containing high-boiling diester solvents |
August 22, 2000 |
| A photographic element comprises a support bearing at least one silver halide emulsion and at least one high-boiling solvent of structure I, below: ##STR1## wherein: each m is independently 0, 1 or 2;each R.sub.1 is independently methyl or ethyl;n is 2 to 7;each R.sub.2 and each R.su |
| 6054258 |
Photographic elements containing high-boiling esters |
April 25, 2000 |
| The invention disclosed is a photographic element comprising a support bearing at least one silver halide emulsion and at least one high-boiling solvent of structure I, below: ##STR1## wherein: m is 0, 1 or 2;each R.sub.1 is an individually selected alkyl group with up to four carbon |
| 5965341 |
Photographic element containing particular coupler combination |
October 12, 1999 |
| 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 (b) a 1-aryl-3-anilino-4-phen |
| 5942381 |
Photographic element and process employing active, stable benzotriazole-releasing DIR couplers |
August 24, 1999 |
| 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: R.sub.1 is hydrogen, chlorine, fluorine or a methyl group;R.sub.2, R.sub.3 |
| 5856072 |
Photographic element containing 5-carbamoyl resorcinol interlayer scavenger |
January 5, 1999 |
| A color photographic element which comprises a light sensitive silver halide emulsion layer and a non-light sensitive interlayer containing a ballasted 5-carbamoyl-1,3-dihydroxybenzene compound. The element exhibits an improved ability to prevent oxidized developer from diffusing away fr |
| 5821039 |
Photographic element containing neutral dye-forming resorcinol coupler |
October 13, 1998 |
| A color photographic element which comprises a light sensitive silver halide emulsion layer containing a 5-carbamoyl-1,3-dihydroxybenzene compound having a ClogP of at least 4. The element provides a black and white image using conventional color negative processing. |
| 5561036 |
Photographic elements containing scavengers for oxidized developing agent |
October 1, 1996 |
| An improved photographic element comprises a support bearing at least one silver halide emulsion layer having associated therewith a hydroquinone compound that functions as a scavenger for oxidized developing agent. The hydroquinone compound has sufficient bulk that it is substantially |
| 5561035 |
Photographic elements containing scavengers for oxidized developing agent |
October 1, 1996 |
| An improved photographic element comprises a support bearing at least one silver halide emulsion layer having associated therewith a pyrocatechol compound that functions as a scavenger for oxidized developing agent. The pyrocatechol compound has sufficient bulk that it is substantially |
| 5521057 |
Photographic elements comprising 2-phenylcarbamoyl-1-naphthol image-modifying couplers yeilding |
May 28, 1996 |
| Photographic elements comprising certain 2-phenylcarbamoyl-1-naphthol image-modifying couplers exhibit proper hue, a resistance to dye crystallization, and a resistance to leuco cyan dye formation. Such couplers can be utilized for their image-modifying effect and can contribute subs |
| 5514530 |
Photographic elements comprising 2-phenylcarbamoyl-1-naphthol image-modifying couplers yielding |
May 7, 1996 |
| Photographic elements comprising certain 2-phenylcarbamoyl-1-naphthol image-modifying couplers exhibit proper hue, a resistance to dye crystallization, and a resistance to leuco cyan dye formation. Such couplers can be utilized for their image-modifying effect and can contribute subs |
| 5506094 |
Photographic elements comprising 2-phenylcarbamoyl-1-naphthol image-modifying couplers yielding |
April 9, 1996 |
| Photographic elements comprising certain 2-phenylcarbamoyl-1-naphthol image-modifying couplers exhibit proper hue, a resistance to dye crystallization, and a resistance to leuco cyan dye formation. Such couplers can be utilized for their image-modifying effect and can contribute subs |
| 5250399 |
Photographic material and process comprising a universal coupler |
October 5, 1993 |
| A photographic coupler (A) capable, upon oxidative coupling, of forming a dye that can be washed out of a photographic element containing the coupler upon processing, comprises, in the coupling position, a coupling-off group that comprises, in sequence, a releasable ballasted carbama |
| 5104769 |
High contrast photographic element and emulsion and process for their use |
April 14, 1992 |
| Photographic elements and emulsions are described which are capable of providing high contrast images. The elements and emulsions comprise negative working silver halide and contrast enhancing arylhydrazide nucleating agents. A process for utilization of the elements and emulsions is |
| 4948721 |
Photographic recording materials with enhanced latent image stability |
August 14, 1990 |
| Latent image stability is enhanced in photographic recording materials using N-alkyl- or N-alkenylbenzothiazolium or -benzoselenazolium salts. |
| 4874866 |
Photographically useful chalcogenazoles, chalcogenazolines, and chalcogenazolinium and chalcogen |
October 17, 1989 |
| Compounds containing an aromatic ring portion fused with a tellurazolium or derivative tellurazole, tellurazoline (including tellurazolinylidene), or tellurazolinium ring portion are disclosed together with processes and intermediates for their preparation. With properly selected pendant |
| 4831136 |
Oxatellurazolium and oxatellurazinium compounds |
May 16, 1989 |
| Compounds containing an aromatic ring portion fused with a tellurazolium or derivative tellurazole, tellurazoline (including tellurazolinylidene), or tellurazolinium ring portion are disclosed together with processes and intermediates for their preparation. With properly selected pendant |
| 4576905 |
Photographically useful chalcogenazoles, chalcogenazolines, and chalcogenazolinium and chalcogen |
March 18, 1986 |
| Compounds containing an aromatic ring portion fused with a tellurazolium or derivative tellurazole, tellurazoline (including tellurazolinylidene), or tellurazolinium ring portion are disclosed together with processes and intermediates for their preparation. With properly selected pendant |
| 4276364 |
Acylhydrazinophenylthiourea nucleating agents and photographic emulsions and elements containing |
June 30, 1981 |
| Novel 3,3-disubstituted acylhydrazinophenylthiourea nucleating agents are disclosed as well as silver halide photographic emulsions and elements containing silver halide grains capable of forming an internal latent image having the nucleating agents adsorbed to the surface of the silver |
| 4080207 |
Radiation-sensitive compositions and photographic elements containing N-(acylhydrazinophenyl) th |
March 21, 1978 |
| Heterocyclic N-(acylhydrazinophenyl)thioamide nucleating agents are disclosed as well as radiation-sensitive compositions and elements containing such nucleating agents in combination with silver halide grains capable of forming an internal latent image. The elements can be used to f |
| 4031127 |
Acyl hydrazino thiourea derivatives as photographic nucleating agents |
June 21, 1977 |
| Photographic nucleating agents are disclosed of the formula ##STR1## wherein R is a hydrogen, phenyl, alkylphenyl, cyanophenyl, halophenyl, alkoxyphenyl, alkyl, cycloalkyl, haloalkyl, alkoxyalkyl or phenylalkyl substituent;R.sup.1 is a phenylene or alkyl, halo- or alkoxy substituted |
| 4030925 |
Photographic compositions and elements including internal latent image silver halide grains and |
June 21, 1977 |
| A radiation-sensitive composition is disclosed including silver halide grains capable of forming an internal latent image and an acylhydrazinophenylthiourea nucleating agent. This composition can be used as a coating on a support to form a photographic element. |
