UST997004I4 - Acylhydrazinophenylthiourea nucleating agents and photographic emulsions and elements containing such agents - Google Patents
Acylhydrazinophenylthiourea nucleating agents and photographic emulsions and elements containing such agents Download PDFInfo
- Publication number
- UST997004I4 UST997004I4 US06/105,317 US10531779A UST997004I4 US T997004 I4 UST997004 I4 US T997004I4 US 10531779 A US10531779 A US 10531779A US T997004 I4 UST997004 I4 US T997004I4
- Authority
- US
- United States
- Prior art keywords
- agents
- elements containing
- photographic emulsions
- nucleating agents
- silver halide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002667 nucleating agent Substances 0.000 title abstract 3
- 239000000839 emulsion Substances 0.000 title abstract 2
- 239000003795 chemical substances by application Substances 0.000 title 1
- 229910052709 silver Inorganic materials 0.000 abstract 3
- 239000004332 silver Substances 0.000 abstract 3
- -1 silver halide Chemical class 0.000 abstract 3
- 238000003384 imaging method Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/485—Direct positive emulsions
- G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure
- G03C1/48546—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent
- G03C1/48561—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent hydrazine compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
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 halide grains. Imaging processes in which these materials participate are also disclosed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/105,317 UST997004I4 (en) | 1979-12-19 | 1979-12-19 | Acylhydrazinophenylthiourea nucleating agents and photographic emulsions and elements containing such agents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/105,317 UST997004I4 (en) | 1979-12-19 | 1979-12-19 | Acylhydrazinophenylthiourea nucleating agents and photographic emulsions and elements containing such agents |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US5658879A Division | 1979-07-11 | 1979-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST997004I4 true UST997004I4 (en) | 1980-08-05 |
Family
ID=22305150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/105,317 Pending UST997004I4 (en) | 1979-12-19 | 1979-12-19 | Acylhydrazinophenylthiourea nucleating agents and photographic emulsions and elements containing such agents |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST997004I4 (en) |
-
1979
- 1979-12-19 US US06/105,317 patent/UST997004I4/en active Pending
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