GB945334A - Silver halide photographic emulsions - Google Patents
Silver halide photographic emulsionsInfo
- Publication number
- GB945334A GB945334A GB2290561A GB2290561A GB945334A GB 945334 A GB945334 A GB 945334A GB 2290561 A GB2290561 A GB 2290561A GB 2290561 A GB2290561 A GB 2290561A GB 945334 A GB945334 A GB 945334A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- hydroxy
- photographic emulsions
- methylene
- colloid
- 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
- -1 Silver halide Chemical class 0.000 title abstract 3
- 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
- WHSXTWFYRGOBGO-UHFFFAOYSA-N 3-methylsalicylic acid Chemical compound CC1=CC=CC(C(O)=O)=C1O WHSXTWFYRGOBGO-UHFFFAOYSA-N 0.000 abstract 3
- 239000000084 colloidal system Substances 0.000 abstract 3
- 108010010803 Gelatin Proteins 0.000 abstract 2
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract 2
- 229920000159 gelatin Polymers 0.000 abstract 2
- 239000008273 gelatin Substances 0.000 abstract 2
- 235000019322 gelatine Nutrition 0.000 abstract 2
- 235000011852 gelatine desserts Nutrition 0.000 abstract 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 abstract 2
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract 2
- ALKYHXVLJMQRLQ-UHFFFAOYSA-N 3-Hydroxy-2-naphthoate Chemical compound C1=CC=C2C=C(O)C(C(=O)O)=CC2=C1 ALKYHXVLJMQRLQ-UHFFFAOYSA-N 0.000 abstract 1
- NJESAXZANHETJV-UHFFFAOYSA-N 4-methylsalicylic acid Chemical compound CC1=CC=C(C(O)=O)C(O)=C1 NJESAXZANHETJV-UHFFFAOYSA-N 0.000 abstract 1
- BSYNRYMUTXBXSQ-FOQJRBATSA-N 59096-14-9 Chemical class CC(=O)OC1=CC=CC=C1[14C](O)=O BSYNRYMUTXBXSQ-FOQJRBATSA-N 0.000 abstract 1
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical class [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- WVYADZUPLLSGPU-UHFFFAOYSA-N carboxyphenyl salicylate Natural products OC(=O)C1=CC=CC=C1OC(=O)C1=CC=CC=C1O WVYADZUPLLSGPU-UHFFFAOYSA-N 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 abstract 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 abstract 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 abstract 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 229960000953 salsalate Drugs 0.000 abstract 1
- 150000003839 salts Chemical class 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
- G03C1/015—Apparatus or processes for the preparation of emulsions
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)
Abstract
945,334. Photographic emulsions. ILFORD Ltd. May 31, 1962 [June 23, 1961], No. 22905/61. Heading G2C. Photographic emulsions are prepared by adding to a colloid dispersion of silver halide in which the colloid is gelatin, polyvinyl alcohol, polyvinyl pyrrolidone or a water-soluble polyoxyethylene, a di-alkali metal salt of a component of the formula wherein one of the groups R 1 and R 4 is hydrogen and the other is hydroxyl and R 2 and R 3 are hydrogens, alkyl groups or together complete a benz ring, acidifying the mixture to a pH of 4.2 or less, separating the precipitate so formed and redispersing it in a water-soluble colloid binder such as gelatin or polyvinyl alcohol. Reference is made to the use of the disodium salts of 5; 5<SP>1</SP>-methylene disalicylic acid, 5, 5<SP>1</SP>-methylene-di(2-hydroxy-3- methyl benzoic acid) and 1, 1<SP>1</SP>-methylene-di(2- hydroxy-3-naphthoic acid). The use of salts of acetyl salicylic acid, isophthalic acid, 3-hydroxyp-toluic acid or 2-hydroxy-m-toluic acid is stated to be unsuitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2290561A GB945334A (en) | 1961-06-23 | 1961-06-23 | Silver halide photographic emulsions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2290561A GB945334A (en) | 1961-06-23 | 1961-06-23 | Silver halide photographic emulsions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB945334A true GB945334A (en) | 1963-12-23 |
Family
ID=10186963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2290561A Expired GB945334A (en) | 1961-06-23 | 1961-06-23 | Silver halide photographic emulsions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB945334A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5994049A (en) * | 1997-08-28 | 1999-11-30 | Eastman Kodak Company | Water-soluble non-interactive polymers and surfactant micelles for desalting and concentrating silver halide photographic emulsions |
| US6004740A (en) * | 1997-08-28 | 1999-12-21 | Eastman Kodak Company | Water-soluble non-interactive carboxyl polymers for desalting and concentrating silver halide photographic emulsions |
-
1961
- 1961-06-23 GB GB2290561A patent/GB945334A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5994049A (en) * | 1997-08-28 | 1999-11-30 | Eastman Kodak Company | Water-soluble non-interactive polymers and surfactant micelles for desalting and concentrating silver halide photographic emulsions |
| US6004740A (en) * | 1997-08-28 | 1999-12-21 | Eastman Kodak Company | Water-soluble non-interactive carboxyl polymers for desalting and concentrating silver halide photographic emulsions |
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