GB616822A - Improvements in and relating to photographic materials - Google Patents
Improvements in and relating to photographic materialsInfo
- Publication number
- GB616822A GB616822A GB10574/46A GB1057446A GB616822A GB 616822 A GB616822 A GB 616822A GB 10574/46 A GB10574/46 A GB 10574/46A GB 1057446 A GB1057446 A GB 1057446A GB 616822 A GB616822 A GB 616822A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bis
- bromide
- ethylenethio
- dihydrobromide
- ethylene
- 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
-
- 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
- G03C1/35—Antiplumming agents, i.e. antibronzing agents; Toners
- G03C1/355—Organic derivatives of bivalent sulfur, selenium or tellurium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/13—Antibronze agent or process
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
S : S1-Trimethylene-bis-thiuronium bromide is prepared by refluxing together thiourea, 1 : 3-dibromopropane, and ethyl alcohol. S : S1-Ethylene-bis-N-ethylthiuronium bromide, S : S1-ethylene - bis - N : N1-diethylthiuronium bromide, S : S1 - ethylene - bis - N : N1 - triethylthiuronium bromide, S : S1 - o - xylylenyl - bis - thiuronium bromide, and S : S1 - ethylene - bis - N - phenyl - N - methylthiuronium bromide are similarly prepared. 2 : 21-Methylenethio-bis-dihydroiminazole dihydriodide is prepared by refluxing together ethylenethiourea (2 - thiotetrahydroiminazole), methylene iodide, and ethyl alcohol. 2 : 21-Ethylenethio - bis - dihydroiminazole dihydrobromide, 2 : 21-trimethylenethio-bis-dihydroiminazole dihydrobromide, 2 : 21-ethylenethio-bis-(4-methyldihydroiminazole) dihydrobromide, 2 : 21 - trimethylenethio-bis-(4-methyliminazole) dihydrobromide, disodium -2 : 21 - ethylenethio - bis - (4-amino-6-hydroxypyrimidine), 4 : 41-ethylenethiobis-(4 : 6-dithio-1 : 3 : 5-thiodiazine), and 2 : 21-ethylenethio-bis-(5-thiol-1 : 3 : 4 - thiodiazole are similarly prepared.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE476657D BE476657A (en) | 1946-04-05 | ||
FR964821D FR964821A (en) | 1946-04-05 | ||
GB10574/46A GB616822A (en) | 1946-04-05 | 1946-04-05 | Improvements in and relating to photographic materials |
US737710A US2514650A (en) | 1946-04-05 | 1947-03-27 | Photographic developing with addition products to improve image quality |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB10574/46A GB616822A (en) | 1946-04-05 | 1946-04-05 | Improvements in and relating to photographic materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB616822A true GB616822A (en) | 1949-01-27 |
Family
ID=9970361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10574/46A Expired GB616822A (en) | 1946-04-05 | 1946-04-05 | Improvements in and relating to photographic materials |
Country Status (4)
Country | Link |
---|---|
US (1) | US2514650A (en) |
BE (1) | BE476657A (en) |
FR (1) | FR964821A (en) |
GB (1) | GB616822A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3640719A (en) * | 1968-08-06 | 1972-02-08 | Agfa Gevaert Ag | Silver halide emulsions containing bis-heterocyclic n-containing compounds as antifoggants |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE564174A (en) * | 1957-01-24 | |||
US2999046A (en) * | 1958-08-25 | 1961-09-05 | Diamond Alkali Co | Method of destroying fungi and nematodes employing 2, 2'-(p-xylene)-bis-[2-thiopseudourea] dihydrochloride |
NL256257A (en) * | 1959-09-26 | |||
US3080254A (en) * | 1959-10-26 | 1963-03-05 | Minnesota Mining & Mfg | Heat-sensitive copying-paper |
BE606550A (en) * | 1960-07-27 | |||
BE621606A (en) * | 1961-08-25 | |||
US3190795A (en) * | 1962-08-31 | 1965-06-22 | Union Carbide Corp | Isothioureidomethyl anthracene compounds and pesticidal compositions |
DE1447569A1 (en) * | 1963-04-27 | 1969-02-13 | Agfa Ag | Photographic light sensitive material |
DE1770074A1 (en) * | 1968-03-28 | 1971-09-16 | Agfa Gevaert Ag | Process for stabilizing the blacks in the hot drying of photographic silver images |
DE1919045C3 (en) * | 1969-04-15 | 1979-11-15 | Agfa-Gevaert Ag, 5090 Leverkusen | Process for producing stable photographic images |
JPS5436495B2 (en) * | 1971-11-09 | 1979-11-09 | ||
US5254335A (en) * | 1990-10-10 | 1993-10-19 | Clairol Incorporated | Hair conditioning compounds containing reactive nonionic surfactants and isothiuronium compounds and method of use |
US5922527A (en) * | 1996-07-15 | 1999-07-13 | Imation Corp. | Image toners for silver halide photographic films |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL55621C (en) * | 1933-05-24 | |||
US2465149A (en) * | 1946-04-25 | 1949-03-22 | Gen Aniline & Film Corp | Tetrazolyl disulfides as stabilizing agents for silver-halide emulsions |
US2453087A (en) * | 1946-11-07 | 1948-11-02 | Gen Aniline & Film Corp | Photographic developers containing tetrazolyl disulfides as antifogging agents |
-
0
- FR FR964821D patent/FR964821A/fr not_active Expired
- BE BE476657D patent/BE476657A/xx unknown
-
1946
- 1946-04-05 GB GB10574/46A patent/GB616822A/en not_active Expired
-
1947
- 1947-03-27 US US737710A patent/US2514650A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3640719A (en) * | 1968-08-06 | 1972-02-08 | Agfa Gevaert Ag | Silver halide emulsions containing bis-heterocyclic n-containing compounds as antifoggants |
Also Published As
Publication number | Publication date |
---|---|
BE476657A (en) | |
US2514650A (en) | 1950-07-11 |
FR964821A (en) | 1950-08-25 |
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