GB712355A - Improvements in photographic processes - Google Patents
Improvements in photographic processesInfo
- Publication number
- GB712355A GB712355A GB8003/52A GB800352A GB712355A GB 712355 A GB712355 A GB 712355A GB 8003/52 A GB8003/52 A GB 8003/52A GB 800352 A GB800352 A GB 800352A GB 712355 A GB712355 A GB 712355A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphonic acid
- acid
- naphthylhydrazine
- prepared
- naphthylamine
- 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
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 4
- WFDIJRYMOXRFFG-UHFFFAOYSA-N acetic acid anhydride Natural products CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 abstract 3
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 abstract 2
- IHAUFFPRNZQYJZ-UHFFFAOYSA-N 8-acetamidonaphthalene-2-sulfonic acid Chemical compound C1=C(S(O)(=O)=O)C=C2C(NC(=O)C)=CC=CC2=C1 IHAUFFPRNZQYJZ-UHFFFAOYSA-N 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 abstract 2
- 229960000583 acetic acid Drugs 0.000 abstract 2
- 239000012362 glacial acetic acid Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- XBCIOBSQHJYVBQ-UHFFFAOYSA-N naphthalen-1-ylhydrazine Chemical compound C1=CC=C2C(NN)=CC=CC2=C1 XBCIOBSQHJYVBQ-UHFFFAOYSA-N 0.000 abstract 2
- VNICRWVQYFRWDK-UHFFFAOYSA-N naphthalen-2-ylhydrazine Chemical compound C1=CC=CC2=CC(NN)=CC=C21 VNICRWVQYFRWDK-UHFFFAOYSA-N 0.000 abstract 2
- 239000001632 sodium acetate Substances 0.000 abstract 2
- 235000017281 sodium acetate Nutrition 0.000 abstract 2
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 abstract 1
- LIUKLAQDPKYBCP-UHFFFAOYSA-N 4-bromonaphthalen-1-amine Chemical compound C1=CC=C2C(N)=CC=C(Br)C2=C1 LIUKLAQDPKYBCP-UHFFFAOYSA-N 0.000 abstract 1
- 229910021626 Tin(II) chloride Inorganic materials 0.000 abstract 1
- 230000000397 acetylating effect Effects 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 230000003301 hydrolyzing effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 159000000000 sodium salts Chemical class 0.000 abstract 1
- 239000001119 stannous chloride Substances 0.000 abstract 1
- 235000011150 stannous chloride Nutrition 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)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US218072A US2604400A (en) | 1951-03-28 | 1951-03-28 | Naphthyl hydrazine sulfonic acids in direct positive photographic processes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB712355A true GB712355A (en) | 1954-07-21 |
Family
ID=22813626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8003/52A Expired GB712355A (en) | 1951-03-28 | 1952-03-28 | Improvements in photographic processes |
Country Status (5)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE512294A (US06515009-20030204-C00004.png) * | 1951-06-27 | |||
| NL246283A (US06515009-20030204-C00004.png) * | 1958-12-11 |
-
0
- BE BE510220D patent/BE510220A/xx unknown
-
1951
- 1951-03-28 US US218072A patent/US2604400A/en not_active Expired - Lifetime
-
1952
- 1952-03-21 DE DEE5231A patent/DE925691C/de not_active Expired
- 1952-03-28 GB GB8003/52A patent/GB712355A/en not_active Expired
- 1952-03-28 FR FR65219D patent/FR65219E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE510220A (US06515009-20030204-C00004.png) | |
| DE925691C (de) | 1955-03-28 |
| FR65219E (fr) | 1956-02-07 |
| US2604400A (en) | 1952-07-22 |
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