http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5869218-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2005-3007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-067 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2200-44 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C5-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-061 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C5-31 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-06 |
| filingDate | 1996-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1999-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b8dc98b06431a92c34076a6abb99bf1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e12d0eca77ef0a0d1e03a32fe8c2f0ad |
| publicationDate | 1999-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5869218-A |
| titleOfInvention | Image formation process |
| abstract | Disclosed are an image formation process which comprises developing a photographic material comprising a silver halide emulsion layer, and a hydrazine derivative and a specific phosphonium compound of formula (1) with a developer which is substantially free of a dihydroxybenzene developing agent, contains a specific developing agent of formula (2) and at least one p-aminophenol derivative, and has a pH value of not more than 10, and a development process which comprises developing a photographic material comprising a silver halide emulsion layer, and a hydrazine derivative and a nucleation accelerator, with a developer having a pH value of from 9.0 to 10.5 and containing a first developing agent selected from ascorbic acid and a derivative thereof and a second developing agent selected from aminophenol and a derivative thereof, wherein a solution having the same composition as the fresh developer but a higher pH value than the fresh developer is used as a development replenisher. The image formation process enables the formation of a high contrast image desirable in the field of graphic arts with a stable developer which is unharmful to an ecosystem or working atmosphere and shows an extremely small deterioration with time, and the development process is useful for a plate-making silver halide photographic material, accomplishes an ultrahigh contrast, minimizes the pH variation during running processing, and reduces the burden on environment. |
| priorityDate | 1995-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 341.