| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2001-0055
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-07
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2001-0478
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-047
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-015
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2001-03558
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2200-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2001-0151
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2200-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2200-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2001-0156 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-0053 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-047
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-015
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-005 |
| filingDate |
1993-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_98459d0099f3f897f63628d25d34012f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e4054b2d8f2ea686aa0c335983e8322
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f7c6a5fb4351abd18689bc376fdb308
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_87993c5b5f16551f71c32214afc6bc2f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d3ceab186875cb466b75ca4a3dae2f3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4d8fb6e2f98b1183c7f966e40f61059
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f3865bf32f0e965011bfcf7bc78ca340 |
| publicationDate |
1995-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0645022-A1 |
| titleOfInvention |
Processes of preparing tabular grain emulsions |
| abstract |
A process is disclosed of preparing silver halide emulsions containing tabular grains bounded by [100] major faces comprised of the steps of (1) introducing silver and halide salts into a dispersing medium and (2) maintaining conditions within the dispersing medium that promote the formation of tabular grains bounded by [100] major faces. The process is characterized in that of the tabular grains bounded by [100] major faces a portion accounting for 50 percent of total grain projected area selected on the criteria of adjacent major face edge ratios of less than 10 and thicknesses of less than 0.3 νm internally at their nucleation site contain iodide and at least 50 mole percent chloride, at least the selected portion of the tabular grains being formed ty nucleation in a continuous double jet reaction in the presence of iodide with chloride accounting for at least 50 mole percent of the halide present in the dispersing medium and the pC1 of the dispersing medium being maintained in the range of from 0.5 to 3.5. Following nucleation tabular grain growth is undertaken in a reaction vessel which receives emulsion from the continuous double jet reactor until the tabular grains having a thickness of less than 0.3 νm exhibit achieve a selected average aspect ratio. |
| priorityDate |
1993-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |