GB1057949A - A process for increasing the general sensitivity of silver halide emulsions - Google Patents
A process for increasing the general sensitivity of silver halide emulsionsInfo
- Publication number
- GB1057949A GB1057949A GB28004/64A GB2800464A GB1057949A GB 1057949 A GB1057949 A GB 1057949A GB 28004/64 A GB28004/64 A GB 28004/64A GB 2800464 A GB2800464 A GB 2800464A GB 1057949 A GB1057949 A GB 1057949A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphoric acid
- group
- dichloride
- alkyl
- acid
- 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
- G03C1/08—Sensitivity-increasing substances
- G03C1/10—Organic substances
- G03C1/12—Methine and polymethine dyes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G79/00—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule
- C08G79/02—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule a linkage containing phosphorus
- C08G79/04—Phosphorus linked to oxygen or to oxygen and carbon
-
- 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
- G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
- G03C1/043—Polyalkylene oxides; Polyalkylene sulfides; Polyalkylene selenides; Polyalkylene tellurides
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Amido phosphoric acid polyethylene glycol esters of formula <FORM:1057949/C2/1> are prepared by reacting a compound of formula <FORM:1057949/C2/2> and the appropriate polyethylene glycol, wherein R1 is an alkyl, aryl or aralkyl group, optionally substituted by an alkyl alkoxy, or halogen group, R2 is an R1 group or hydrogen, or R1 and R2 complete a 5- or 6-membered heterocyclic ring, Y is a halogen or alkoxy group, R3 is an H, alkyl or acyl group, n is 2-100, m is n or 0, and X is 1-100. Suitable catalysts are amines and sodium metal or its alcoholate. In the examples N,N-diethyl phosphoric acid, amide dichloride, N-methyl-N-phenyl phosphoric acid amide dichloride, N-propylamido-phosphoric acid diethyl ester, N,N-diethylamidophosphoric acid dichloride and N-methyl-N-phenylamido-phosphoric acid dichloride are reacted with various polyethyleneglycols. The end groups may be modified by reaction with acids, esters, acid anhydrides or isocyanates.ALSO:Amido phosphoric acid polyethylene glycol esters of formula <FORM:1057949/C3/1> are prepared by reacting a compound of formula <FORM:1057949/C3/2> and the appropriate polyethylene glycol, wherein R1 is an alkyl, aryl or aralkyl group, optionally substituted by an alkyl, alkoxy or halogen group, R2 is an R1 group or hydrogen, or R1 and R2 complete a 5- or 6-membered heterocyclic ring, Y is a halogen or alkoxy group, R3 is an H, alkyl or acyl group, n is 2-100, m is n or O, and X is 1-100. Suitable catalysts are amines and sodium metal or its alcoholate. In the examples, N,N-diethyl phosphoric acid amide dichloride, N-methyl-N-phenyl phosphoric acid amide dichloride, N-propylamidophosphoric acid diethyl ester, N,N-diethylamidophosphoric acid dichloride and N-methyl-N-phenylamidophosphoric acid dichloride are reacted with various polyethylene glycols. The end groups may be modified by reaction with acids, esters, acid anhydrides or isocyanates.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA43552A DE1182523B (en) | 1963-07-11 | 1963-07-11 | Process for increasing the sensitivity of halogen silver emulsions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1057949A true GB1057949A (en) | 1967-02-08 |
Family
ID=6933709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28004/64A Expired GB1057949A (en) | 1963-07-11 | 1964-07-07 | A process for increasing the general sensitivity of silver halide emulsions |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3385704A (en) |
| BE (1) | BE650454A (en) |
| CH (1) | CH443897A (en) |
| DE (1) | DE1182523B (en) |
| GB (1) | GB1057949A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD160538A1 (en) * | 1980-11-26 | 1983-09-07 | Adw Ddr | PROCESS FOR INTRODUCING HYDROPHOBIC PHOTOGRAPHIC ADDITIVES |
| US4436811A (en) | 1981-07-10 | 1984-03-13 | Ciba-Geigy Ag | Photographic material |
| US5550013A (en) * | 1994-12-22 | 1996-08-27 | Eastman Kodak Company | High chloride emulsions having high sensitivity and low fog and improved photographic responses of HIRF, higher gamma, and shoulder density |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2870042A (en) * | 1956-06-05 | 1959-01-20 | Leon H Chance | Flame resistant organic textiles and method of production |
| US3190752A (en) * | 1961-12-26 | 1965-06-22 | Fuji Photo Film Co Ltd | High edge gradient silver halide emulsion |
| US3256249A (en) * | 1963-11-21 | 1966-06-14 | Wyandotte Chemicals Corp | Phosphoramidate based polyurethanes |
-
1963
- 1963-07-11 DE DEA43552A patent/DE1182523B/en active Pending
-
1964
- 1964-07-01 CH CH863664A patent/CH443897A/en unknown
- 1964-07-01 US US379738A patent/US3385704A/en not_active Expired - Lifetime
- 1964-07-07 GB GB28004/64A patent/GB1057949A/en not_active Expired
- 1964-07-13 BE BE650454D patent/BE650454A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE650454A (en) | 1965-01-13 |
| US3385704A (en) | 1968-05-28 |
| CH443897A (en) | 1967-09-15 |
| DE1182523B (en) | 1964-11-26 |
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