http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2202663-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C5-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-44 |
| filingDate | 1972-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c7f98ebfae77d2bc8e06190f555436a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea24d093e65a7d7db10b3ee002f63aff http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c3d338411538173c17c75a44102662a2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c3dbd7c814ce1b57191e944af7c3de9b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03e82d24213e4368d4c689dcd5aedb28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e66af42e1b5b90a717fdf620a5164105 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b85554108b128daadae12c08905d7556 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_902b9c30f1cf17d2664a7f0d06bf5454 |
| publicationDate | 1973-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-2202663-A1 |
| titleOfInvention | PROCESS FOR PRODUCING PHOTOGRAPHICAL LINE AND HALFTONE IMAGES |
| abstract | Photographic high contrast pictures, esp. point- or raster picture printing patterns with reduced seams or edges round spots or points, are produced by developing an exposed photographic high contrast element with a developer contg. (a) >=1 dihydroxybenzene, esp. in form of hydroquinone, and (b) a sulphite ion and opt. a sulphite ion buffer, e.g. an aldehyde- or ketone-bisulphite adduct, and then treating the photographic element with a soln. of an oxidising agent, esp. a bichromate, ferricyanide,persulphate, perchlorate or a complex salt of Fe-(III)-ions. Pref. soln. is used as oxidising bath before fixing and contains an oxidising agent, esp. a brichromate, ferricyanide, persulphate or perchlorate, and a halide, esp. an alkali- or NH4 halide; or as a fixing soln. contg. fixing agent, esp. an alkali- or NH4 thiosulphate, and an oxidising agents, esp. a complex salt of Fe-(III)-ions with an org. acid. esp. EDTA. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4172728-A |
| priorityDate | 1972-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 105.