GB1466740A - Tetrazolium c-oxy-betaine compounds as antifog agents for silver halide photographic emulsions - Google Patents
Tetrazolium c-oxy-betaine compounds as antifog agents for silver halide photographic emulsionsInfo
- Publication number
- GB1466740A GB1466740A GB1989374A GB1989374A GB1466740A GB 1466740 A GB1466740 A GB 1466740A GB 1989374 A GB1989374 A GB 1989374A GB 1989374 A GB1989374 A GB 1989374A GB 1466740 A GB1466740 A GB 1466740A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tetrazolium
- oxy
- silver halide
- halide photographic
- betaine compounds
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D257/00—Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms
- C07D257/02—Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms not condensed with other rings
- C07D257/04—Five-membered rings
-
- 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
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Abstract
1466740 Tetrazolium C-oxy-betaine compounds MINNESOTA MINING & MFG CO 6 May 1974 [7 May 1973] 19893/74 Heading C2C [Also in Division G2] Tetrazolium C-oxy-betaine compounds having the general formula or a mesomeric form thereof, wherein R is an optionally substituted aryl group are prepared by oxidizing the corresponding C-nitro formazane, using for example, amyl nitrite, N- bromosuccinimide, lead acetate or sodium hypochlorite as the oxidizing agent. The compounds of the invention may be used as foginhibiting agents for silver halide photographic emulsions.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT49830/73A IT984942B (en) | 1973-05-07 | 1973-05-07 | TETRAZOLIO BETAINE C OXES AS ANTI-FROST AGENTS FOR SILVER HALIDE PHOTO GRAPHIC EMULSIONS |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1466740A true GB1466740A (en) | 1977-03-09 |
Family
ID=11271660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1989374A Expired GB1466740A (en) | 1973-05-07 | 1974-05-06 | Tetrazolium c-oxy-betaine compounds as antifog agents for silver halide photographic emulsions |
Country Status (9)
Country | Link |
---|---|
US (1) | US3909268A (en) |
JP (1) | JPS5855496B2 (en) |
AR (1) | AR201583A1 (en) |
BE (1) | BE814663A (en) |
CA (1) | CA1030002A (en) |
DE (1) | DE2422069A1 (en) |
FR (1) | FR2229080B1 (en) |
GB (1) | GB1466740A (en) |
IT (1) | IT984942B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5917825B2 (en) * | 1975-08-02 | 1984-04-24 | コニカ株式会社 | How to form high contrast silver images |
US4210715A (en) * | 1975-08-02 | 1980-07-01 | Konishiroku Photo Industry Co., Ltd. | Light-sensitive silver halide photographic material and method of processing thereof |
JPS5917818B2 (en) * | 1976-07-31 | 1984-04-24 | コニカ株式会社 | Silver halide photographic material |
US4175966A (en) * | 1975-08-02 | 1979-11-27 | Konishiroku Photo Industry Co., Ltd. | Light-sensitive black-white silver halide photographic material for forming a high-contrast silver image and method of treating thereof |
DE2657892C2 (en) * | 1975-12-23 | 1985-08-14 | Micro Technology Laboratory Co. Ltd., Tokio/Tokyo | DC machine |
US4265794A (en) | 1976-01-07 | 1981-05-05 | Ford Motor Company | Moldable mixture of sacrificial binder and sinterable particulate solids |
JPS6015936B2 (en) * | 1976-07-31 | 1985-04-23 | コニカ株式会社 | Silver halide photographic material |
JPS5917820B2 (en) * | 1977-01-26 | 1984-04-24 | コニカ株式会社 | How to form high contrast silver images |
JPS5917819B2 (en) * | 1977-01-27 | 1984-04-24 | コニカ株式会社 | Silver halide photographic material |
JPS5917821B2 (en) * | 1977-01-28 | 1984-04-24 | コニカ株式会社 | High contrast silver halide photographic material |
JPS5917826B2 (en) * | 1977-01-31 | 1984-04-24 | コニカ株式会社 | Processing method for silver halide photographic materials |
JPS5917822B2 (en) * | 1977-02-01 | 1984-04-24 | コニカ株式会社 | Silver halide photographic material |
JPS61296348A (en) * | 1985-06-25 | 1986-12-27 | Konishiroku Photo Ind Co Ltd | Silver halide photographic sensitive material |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3023103A (en) * | 1960-08-02 | 1962-02-27 | Gen Aniline & Film Corp | Antifoggants and stabilizers for photographic silver halide emulsions |
US3420664A (en) * | 1966-01-03 | 1969-01-07 | Gaf Corp | Dehydrodithizone and mercaptotetrazolium salts as silver halide photographic antifoggants and stabilizers |
-
1973
- 1973-05-07 IT IT49830/73A patent/IT984942B/en active
-
1974
- 1974-04-29 US US465185A patent/US3909268A/en not_active Expired - Lifetime
- 1974-05-06 GB GB1989374A patent/GB1466740A/en not_active Expired
- 1974-05-06 CA CA199,054A patent/CA1030002A/en not_active Expired
- 1974-05-06 FR FR7415516A patent/FR2229080B1/fr not_active Expired
- 1974-05-07 DE DE2422069A patent/DE2422069A1/en not_active Ceased
- 1974-05-07 AR AR253633A patent/AR201583A1/en active
- 1974-05-07 BE BE144019A patent/BE814663A/en not_active IP Right Cessation
- 1974-05-07 JP JP49050638A patent/JPS5855496B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5032930A (en) | 1975-03-29 |
FR2229080A1 (en) | 1974-12-06 |
AR201583A1 (en) | 1975-03-31 |
IT984942B (en) | 1974-11-20 |
FR2229080B1 (en) | 1977-10-21 |
BE814663A (en) | 1974-11-07 |
DE2422069A1 (en) | 1974-12-05 |
CA1030002A (en) | 1978-04-25 |
JPS5855496B2 (en) | 1983-12-09 |
US3909268A (en) | 1975-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |