http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110256682-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-182 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G83-008 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G83-00 |
| filingDate | 2019-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110256682-B |
| titleOfInvention | Organic light-emitting material and preparation method thereof |
| abstract | The invention provides a preparation method of an organic light-emitting material. The rare earth oxide is dissolved in concentrated hydrochloric acid, the mixed solution is adjusted to weak acidity with deionized water, the mixed solution is concentrated, cooled, and a solid is precipitated, and the solid is dried to obtain Rare earth chloride: Mix rare earth chloride, sodium acetate and deionized water to obtain a mixed aqueous solution, and add the mixed solution of 1,3,5- trimesic acid and N,N-dimethylformamide dropwise to prepare In the mixed aqueous solution of 2, the temperature-raising reaction was carried out after vigorous stirring, the reaction was cooled to room temperature and taken out, and a solid sample was obtained after centrifugation; the solid sample was washed with N,N-dimethylformamide, soaked in methanol, and then again The final sample is separated by centrifugation, and the final sample is dried to obtain the product. The organic luminescent material provided by the invention has high luminous efficiency and luminous intensity, and the preparation method has simple operation, low cost and high yield. |
| priorityDate | 2019-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.