http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2040719-A5
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_99a3e6cf9ae2da50e548d7039dc30f86 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B23-0025 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B23-0075 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B23-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-26 |
| filingDate | 1969-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1971-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1971-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-2040719-A5 |
| titleOfInvention | Optically sensitised silver halide emulsions |
| abstract | A red sensitising dyestuff is of the formula: where A and B each represent an atom(s) required to complete a heterocyclic ring, R1, R2, R3 and R4 are each alkyl, alkenyl, hydroxyalkyl or aralkyl and X is an anion, and where R1, R2, R3 and R4 may be identical or different. Preferably a silver chloride/bromide or silver bromide/iodide emulsifier is used, X is preferably Cl-, Br-, I-, ClO4-, NO3-, SCN-, alkyl sulphate or aryl sulphonate and the heterocyclic ring is preferably a thiozole, oxazole, or a selenazole ring. The colour coupler is preferably an alpha-naphthol. The dyestuffs show a balanced sensitising curve free from pronounced sensitising maxima, and the colour coupler enhances the sensitising intensity of the dyestuffs. |
| priorityDate | 1969-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.