GB969996A - Production of positive photographic records - Google Patents
Production of positive photographic recordsInfo
- Publication number
- GB969996A GB969996A GB2029262A GB2029262A GB969996A GB 969996 A GB969996 A GB 969996A GB 2029262 A GB2029262 A GB 2029262A GB 2029262 A GB2029262 A GB 2029262A GB 969996 A GB969996 A GB 969996A
- Authority
- GB
- United Kingdom
- Prior art keywords
- production
- iminazolenine
- dimethyl
- give
- positive photographic
- 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
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 2
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- NLEGOBBGDOATPO-UHFFFAOYSA-N 5,5-dimethylimidazolidine-2,4-dithione Chemical compound CC1(C)NC(=S)NC1=S NLEGOBBGDOATPO-UHFFFAOYSA-N 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 235000019270 ammonium chloride Nutrition 0.000 abstract 1
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
- G03C8/24—Photosensitive materials characterised by the image-receiving section
- G03C8/243—Toners for the silver image
Abstract
5,5-dimethyl-2-methylthio-4-mercapto-iminazolenine is prepared by heating sodium cyanide, ammonium chloride, carbon disulphide, acetone and industrial alcohol and the product filtered and washed with water to remove sodium chloride. The solid is then heated with sodium hydroxide, filtered and neutralized with acid to give 5,5-dimethyl dithiohydantoin which is reacted with methyl iodide to give the iminazolenine. Specifications 614,155, 695,905 and 875,644 are referred to.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE632799D BE632799A (en) | 1962-05-25 | ||
| GB2029262A GB969996A (en) | 1962-05-25 | 1962-05-25 | Production of positive photographic records |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2029262A GB969996A (en) | 1962-05-25 | 1962-05-25 | Production of positive photographic records |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB969996A true GB969996A (en) | 1964-09-16 |
Family
ID=10143564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2029262A Expired GB969996A (en) | 1962-05-25 | 1962-05-25 | Production of positive photographic records |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE632799A (en) |
| GB (1) | GB969996A (en) |
-
0
- BE BE632799D patent/BE632799A/xx unknown
-
1962
- 1962-05-25 GB GB2029262A patent/GB969996A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE632799A (en) |
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