http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0423886-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_62096a32ffb6c646abb54a4c148f213a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-56 |
| filingDate | 1990-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bf55d1686151af048a23e406ba9e190c |
| publicationDate | 1992-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0423886-A |
| titleOfInvention | Treatment of electro-luminescent fluorescent material |
| abstract | PURPOSE: To obtain an EL fluorescent material having high efficiency and luminance by treating a sulfide-based electro-luminescent fluorescent material containing copper as an activation agent with an aqueous solution containing a chelating agent and an oxidizing agent, thereby dissolving and removing the CuS, Cu 2 S, etc., remaining on the surface of the fluorescent material. n CONSTITUTION: The objective fluorescent material can be produced by treating a sulfide-based electro-luminescent fluorescent material containing copper as an activation agent with an aqueous solution containing (A) a water-soluble chelating agent such as ethylenediaminetetraacetic acid, iminodiacetic acid and nitriloacetic acid, (B) an oxidizing agent such as hydrogen peroxide, sodium hypochlorite and potassium periodate and, as necessary, (C) an alkaline agent such as NH 4 OH and NaOH. The temperature of the solution is preferably ≥50°C. n COPYRIGHT: (C)1992,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2012107116-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2460898-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1231254-A1 |
| priorityDate | 1990-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.