http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1247438-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2001-03535 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2001-0357 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2001-03564 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-015 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-07 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 | 1985-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1988-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9881fd99e9b296f325f2035c78432ae2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb7b692657e60537e4c610ffca62fd03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82dd04145f226c1d6080f397c6d111f3 |
| publicationDate | 1988-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1247438-A |
| titleOfInvention | Processes for the preparation of silver halide emulsions of controlled grain size distribution, emulsions produced thereby and photographic elements |
| abstract | PROCESSES FOR THE PREPARATION OF SILVER HALIDE EMULSIONS OF CONTROLLED GRAIN SIZE DISTRIBUTION, EMULSIONS PRODUCED THEREBY, AND PHOTOGRAPHIC ELEMENTS Abstract of the Disclosure A process is disclosed of producing photo-graphically useful radiation sensitive silver halide emulsions the grains of which are of a predetermined size distribution, including selection of maximum and minimum grain diameters find selection of the distri-bution of grains of maximum, minimum, and intervening diameters. This is achieved by modifying a double jet precipitation to introduce during the run stable silver halide grains capable of acting as host grains for the deposition of additional silver and halide ions. The degree to which the host grains initially introduced are grown determines the maximum grain diameter of the emulsion. The minimum diameter of the grains in the emulsion produced can be determined by the diameter of the stable silver halide grains introduced at the end of the run. The rate at which the stable host grains are introduced during the run controls the distribution of intervening grain sizes. The silver halide emulsion produced in various forms can be comprised of silver halide grains differing in diameter such that (a) the relative frequency of grain size occurrences is relatively invariant over much of the range of grain sizes present; (b) the maximum relative frequency of grain sizes occurs near the minimum grain diameter of the emulsion; (c) the maximum relative frequency of grain sizes occurs near the maximum grain diameter; or (d) maximum relative frequencies of grain sizes occur near both the maximum and minimum grain sizes. |
| priorityDate | 1984-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.