http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3728119-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20688220cab72ad01902ff5223732946 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-7253 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-725 |
| filingDate | 1971-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1973-04-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_549314a1c96651a4b691170c7820e60b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8486be87c59e051e0d1b01686d53f70f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a34143d99fa030e27b07a47a118aa1d |
| publicationDate | 1973-04-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3728119-A |
| titleOfInvention | Production of positive copper images utilizing photosensitive lead compounds |
| abstract | AN IMAGE REPRODUCTION SYSTEM IS PROVIDED USING A PHOTOSENSITIVE RECORDING MATERIAL CONTAINING A PHOTOSENSITIVE LEAD COMPOUND CAPABLE OF SEPARATING METALLIC LEAD ON EXPOSURE TO ACTIVATING ELECTROMAGNETIC RADIATION. THE LEAD COMPOUND STANDS IN WORKING CONTACT WITH A REDUCING AGENT CAPABLE TO PROMOTE THE FORMATION OF METALLIC LEAD IN THE EXPOSED PORTIONS. IN A FIRST STEP A PRINT-OUT LEAD IMAGE IS FORMED. IN A SECOND STEP THE PRINT-OUT LEAD IMAGE IS REMOVED AND SIMULTANEOUSLY A POSITIVE COPPER METAL IMAGE IS FORMED BY A TREATMENT WITH AN AQUEOUS COPPER (II) SOLUTION. AS PHOTOSENSITIVE LEAD COMPOUNDS YELLOW LEAD (II) OXIDE AND LEAD (II) IODIDE ARE PREFERRED. THE FORMATION OF METALLIC LEAD IS PROMOTED BY ASCORBIC ACID AND THE FORMATION OF METALLIC COPPER BY SODIUM DITHIONITE. |
| priorityDate | 1970-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.