http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6218070-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20688220cab72ad01902ff5223732946 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C5-305 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-295 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-305 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-295 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-06 |
| filingDate | 1994-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2001-04-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3da0fe896bfdd97c302ccc4644688d50 |
| publicationDate | 2001-04-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6218070-B1 |
| titleOfInvention | Process to make ultrahigh contrast images |
| abstract | A process to make ultrahigh contrast photographic negative images is disclosed. In known processes, particularly those using hydrazine compounds, developer solutions to increase contrast contain high concentrations of amino compounds that are volatile, have an annoying, unwholesome odor, and corrode the development machines. If development is conducted in the presence of onium compounds having both quaternary nitrogen and tertiary amine functions in the molecule, the process can operate with odor-free developers that do not release corrosive vapors. The invention can be used in reprography for steps preliminary to printing. |
| priorityDate | 1993-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 412.