GB1394371A - Photographic emulsions - Google Patents
Photographic emulsionsInfo
- Publication number
- GB1394371A GB1394371A GB1561472A GB1561472A GB1394371A GB 1394371 A GB1394371 A GB 1394371A GB 1561472 A GB1561472 A GB 1561472A GB 1561472 A GB1561472 A GB 1561472A GB 1394371 A GB1394371 A GB 1394371A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cysteine
- aralkyl
- alkyl
- carbamyl
- allyl
- 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
- 239000000839 emulsion Substances 0.000 title abstract 3
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
- -1 silver halide Chemical class 0.000 abstract 2
- YOAUVDYBDJTJJP-REOHCLBHSA-N (2r)-2-amino-3-carbamoylsulfanylpropanoic acid Chemical compound OC(=O)[C@@H](N)CSC(N)=O YOAUVDYBDJTJJP-REOHCLBHSA-N 0.000 abstract 1
- IAZGSEXFFGHKDF-UHFFFAOYSA-N 2-azaniumyl-3-phenylmethoxycarbonylsulfanylpropanoate Chemical compound OC(=O)C(N)CSC(=O)OCC1=CC=CC=C1 IAZGSEXFFGHKDF-UHFFFAOYSA-N 0.000 abstract 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 1
- GGLZPLKKBSSKCX-YFKPBYRVSA-N L-ethionine Chemical compound CCSCC[C@H](N)C(O)=O GGLZPLKKBSSKCX-YFKPBYRVSA-N 0.000 abstract 1
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 abstract 1
- ZFAHNWWNDFHPOH-YFKPBYRVSA-N S-allylcysteine Chemical compound OC(=O)[C@@H](N)CSCC=C ZFAHNWWNDFHPOH-YFKPBYRVSA-N 0.000 abstract 1
- GHBAYRBVXCRIHT-VIFPVBQESA-N S-benzyl-L-cysteine zwitterion Chemical compound OC(=O)[C@@H](N)CSCC1=CC=CC=C1 GHBAYRBVXCRIHT-VIFPVBQESA-N 0.000 abstract 1
- GBFLZEXEOZUWRN-VKHMYHEASA-N S-carboxymethyl-L-cysteine Chemical compound OC(=O)[C@@H](N)CSCC(O)=O GBFLZEXEOZUWRN-VKHMYHEASA-N 0.000 abstract 1
- ULXKXLZEOGLCRJ-BYPYZUCNSA-N S-ethyl-L-cysteine zwitterion Chemical compound CCSC[C@H](N)C(O)=O ULXKXLZEOGLCRJ-BYPYZUCNSA-N 0.000 abstract 1
- IDIDJDIHTAOVLG-UHFFFAOYSA-N S-methyl-L-cysteine Natural products CSCC(N)C(O)=O IDIDJDIHTAOVLG-UHFFFAOYSA-N 0.000 abstract 1
- IDIDJDIHTAOVLG-VKHMYHEASA-N S-methylcysteine Chemical compound CSC[C@H](N)C(O)=O IDIDJDIHTAOVLG-VKHMYHEASA-N 0.000 abstract 1
- 150000001450 anions Chemical group 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 abstract 1
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 abstract 1
- 229930182817 methionine Natural products 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
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
- G03C1/346—Organic derivatives of bivalent sulfur, selenium or tellurium
Abstract
1394371 Photographic silver halide emulsions ILFORD Ltd 5 April 1973 [5 April 1972] 15614/72 Heading G2C Latent image regression in photographic silver halide emulsions, especially in those hardened by halotriazinyl, halotriphospha-triazinyl or halodiazinyl hardening agents, is reduced by the addition of a compound of one of the general formulae:- wherein R 1 and R 2 are each alkyl or aralkyl both of which may be substituted, allyl, carbamyl, alkyl-O-CO-, aralkyl-O-CO- or R3 CO- where R 3 is alkyl, aralkyl or aryl all of which may be substituted, and R 2 may additionally be H; X is an anion; n is 0 or 1; x is 0, 1 or 2; y is 1 or 2 and D is O or S, but excluding methionine. Specified compounds are ethionine, S-methyl- L-cysteine, S-carboxymethyl-L-cysteine, S-carbamyl-L-cysteine, S-ethyl-L-cysteine, S-allyl-L-cysteine, S-benzyl-L-cysteine and S-carbobenzyloxy-L-cysteine and its hydrochloride. The hardening agent specified is 4- (2:4-dichloro-1:3:5-triazinylamino) benzene sulphonic acid used in conjunction with 1:4- diaza-bicyclo-(2:2:2)-octane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1561472A GB1394371A (en) | 1972-04-05 | 1972-04-05 | Photographic emulsions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1561472A GB1394371A (en) | 1972-04-05 | 1972-04-05 | Photographic emulsions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1394371A true GB1394371A (en) | 1975-05-14 |
Family
ID=10062312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1561472A Expired GB1394371A (en) | 1972-04-05 | 1972-04-05 | Photographic emulsions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1394371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2307292A1 (en) * | 1975-04-09 | 1976-11-05 | Agfa Gevaert | PRODUCTION OF PHOTOGRAPHIC SILVER HALOGENIDE EMULSIONS |
-
1972
- 1972-04-05 GB GB1561472A patent/GB1394371A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2307292A1 (en) * | 1975-04-09 | 1976-11-05 | Agfa Gevaert | PRODUCTION OF PHOTOGRAPHIC SILVER HALOGENIDE EMULSIONS |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |