GB1363772A - Photographic silver halide emulsions - Google Patents
Photographic silver halide emulsionsInfo
- Publication number
- GB1363772A GB1363772A GB5034171A GB5034171A GB1363772A GB 1363772 A GB1363772 A GB 1363772A GB 5034171 A GB5034171 A GB 5034171A GB 5034171 A GB5034171 A GB 5034171A GB 1363772 A GB1363772 A GB 1363772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- optionally substituted
- aryl
- silver halide
- quaternary
- oct
- 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
- 239000000839 emulsion Substances 0.000 title abstract 3
- 229910052709 silver Inorganic materials 0.000 title abstract 2
- 239000004332 silver Substances 0.000 title abstract 2
- -1 silver halide Chemical class 0.000 title abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 3
- 125000002373 5 membered heterocyclic group Chemical group 0.000 abstract 2
- 125000004070 6 membered heterocyclic group Chemical group 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 125000004433 nitrogen atom Chemical group N* 0.000 abstract 2
- 125000000547 substituted alkyl group Chemical group 0.000 abstract 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 150000001450 anions Chemical group 0.000 abstract 1
- 125000004104 aryloxy group Chemical group 0.000 abstract 1
- 125000004429 atom Chemical group 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 125000000623 heterocyclic group Chemical group 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 229910052711 selenium Inorganic materials 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/52—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems
- C07D263/54—Benzoxazoles; Hydrogenated benzoxazoles
- C07D263/56—Benzoxazoles; Hydrogenated benzoxazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/60—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings condensed with carbocyclic rings or ring systems
- C07D277/62—Benzothiazoles
- C07D277/64—Benzothiazoles with only hydrocarbon or substituted hydrocarbon radicals attached in position 2
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D293/00—Heterocyclic compounds containing rings having nitrogen and selenium or nitrogen and tellurium, with or without oxygen or sulfur atoms, as the ring hetero atoms
- C07D293/10—Heterocyclic compounds containing rings having nitrogen and selenium or nitrogen and tellurium, with or without oxygen or sulfur atoms, as the ring hetero atoms condensed with carbocyclic rings or ring systems
- C07D293/12—Selenazoles; Hydrogenated selenazoles
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Pyridine Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
1363772 Direct-positive photographic emulsions EASTMAN KODAK CO 29 Oct 1971 [30 Oct 1970] 50341/71 Heading G2C Direct-positive photographic silver halide emulsion of the internal latent image type contains as fogging agent a compound comprising a heterocyclic nucleus containing a 5- or 6- membered heterocyclic ring including a quaternary N atom carrying a group of formula:- CH 2 CH 2 COR (which R is H, aryl as defined or optionally substituted alkyl), the ring also carrying an optionally substituted lower alkyl group attached to a nuclear carbon atom adjacent to the quaternary N atom. Preferred fogging agents are of formula: (wherein Z completes a 5- or 6- membered heterocyclic ring, the additional atoms being selected from C, N, O, S and Se; R is H or optionally substituted 1-4C alkyl or aryl; either n is 1 and R 1 is H, aryloxy, aryl or optionally substituted alkyl, or n is 2 and R 1 is ethylene; X is anion).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8570970A | 1970-10-30 | 1970-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1363772A true GB1363772A (en) | 1974-08-14 |
Family
ID=22193442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5034171A Expired GB1363772A (en) | 1970-10-30 | 1971-10-29 | Photographic silver halide emulsions |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3734738A (en) |
| JP (1) | JPS5219452B1 (en) |
| BE (1) | BE774437A (en) |
| CA (1) | CA953144A (en) |
| DE (1) | DE2154075C3 (en) |
| FR (1) | FR2113039A5 (en) |
| GB (1) | GB1363772A (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3850638A (en) * | 1973-04-02 | 1974-11-26 | Eastman Kodak Co | Benzimidazole nucleating agents |
| US4030925A (en) * | 1975-08-06 | 1977-06-21 | Eastman Kodak Company | Photographic compositions and elements including internal latent image silver halide grains and acylhydrazinophenylthiourea nucleating agents therefor |
| JPS5814665B2 (en) * | 1975-12-09 | 1983-03-22 | 富士写真フイルム株式会社 | Chiyokusetsupojihalogen Kaginkankouzairiyou |
| US4080207A (en) * | 1976-06-29 | 1978-03-21 | Eastman Kodak Company | Radiation-sensitive compositions and photographic elements containing N-(acylhydrazinophenyl) thioamide nucleating agents |
| JPS5319205A (en) * | 1976-08-04 | 1978-02-22 | Fuji Photo Film Co Ltd | Ps plate for lithographic printing |
| JPS583535B2 (en) * | 1976-11-25 | 1983-01-21 | コニカ株式会社 | Direct positive image formation method |
| JPS55138742A (en) * | 1979-04-17 | 1980-10-29 | Fuji Photo Film Co Ltd | Silver halide emulsion developing method |
| FR2497367B1 (en) * | 1980-10-16 | 1987-08-14 | Kodak Pathe | POSITIVE-DIRECT SILVER HALIDE EMULSION WITH INCORPORATED NUCLEATION AGENT |
| US4315986A (en) * | 1980-11-10 | 1982-02-16 | Eastman Kodak Company | Photographic emulsions and elements capable of forming direct-positive images |
| US4306017A (en) * | 1980-11-17 | 1981-12-15 | Eastman Kodak Company | Photographic emulsions and elements capable of forming direct-positive images |
| CA1170886A (en) * | 1981-09-02 | 1984-07-17 | Paul M. Magee | Nucleating composition for silver halide including triazole substituted and thiourea substituted phenyl hydrazides |
| US4504570A (en) * | 1982-09-30 | 1985-03-12 | Eastman Kodak Company | Direct reversal emulsions and photographic elements useful in image transfer film units |
| US4471044A (en) * | 1983-06-13 | 1984-09-11 | Eastman Kodak Company | Silver halide emulsions and photographic elements containing adsorbable alkynyl substituted heterocyclic quaternary ammonium salts |
| EP0204530B1 (en) | 1985-05-31 | 1991-09-11 | Konica Corporation | Method for forming direct positive color image |
| JP2520602B2 (en) * | 1986-06-10 | 1996-07-31 | 富士写真フイルム株式会社 | Silver halide photographic material |
-
1970
- 1970-10-30 US US00085709A patent/US3734738A/en not_active Expired - Lifetime
-
1971
- 1971-09-09 CA CA122,435A patent/CA953144A/en not_active Expired
- 1971-10-21 FR FR7137799A patent/FR2113039A5/fr not_active Expired
- 1971-10-25 BE BE774437A patent/BE774437A/en unknown
- 1971-10-29 GB GB5034171A patent/GB1363772A/en not_active Expired
- 1971-10-29 DE DE2154075A patent/DE2154075C3/en not_active Expired
- 1971-10-30 JP JP46086688A patent/JPS5219452B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2154075A1 (en) | 1972-05-10 |
| DE2154075B2 (en) | 1978-05-18 |
| DE2154075C3 (en) | 1979-01-18 |
| US3734738A (en) | 1973-05-22 |
| BE774437A (en) | 1972-02-14 |
| CA953144A (en) | 1974-08-20 |
| FR2113039A5 (en) | 1972-06-23 |
| JPS5219452B1 (en) | 1977-05-27 |
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| Publication | Publication Date | Title |
|---|---|---|
| GB1363772A (en) | Photographic silver halide emulsions | |
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| GB1252960A (en) | ||
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| GB1053067A (en) | ||
| GB1203845A (en) | Silver halide developing agents | |
| GB1363301A (en) | Supersensitising combination' | |
| GB1293543A (en) | Photographic light-sensitive material | |
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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 |