| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-7787 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-77 |
| filingDate |
1971-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1974-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1dabbffcf81e8e116e127fc1c751f7f6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_645fe921cb3f62aa323de155790b1f53 |
| publicationDate |
1974-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3798173-A |
| titleOfInvention |
Product and process for europium-activated rare earth phosphor |
| abstract |
EUROPIUM OXIDE ACTIVATED RARE EARTH PHOSPHORS ARE PREPARED HAVING IMPROVED PHYSICAL PROPERTIES INCLUDING UNIFORM PARTICLE SIZE OF THE PHOSPHOR CRYSTALS, BRIGHTER EMSISION, AND LESS ELECTRICAL CONDUCTIVITY THAN CAN BE OBTAINED BY CONVENTIONAL METHODS OF PREPARATION. THE PHOSPHOR CRYSTALS ARE GROWN IN THE PRESENCE OF A VITREOUS FLUX ACOMPOSITION WHICH IS AN ALKALI BOROSILICATE MATERIAL HAVING A VITREOUS PHASE. THE VITREOUS FLUX CAN BE FORMED IN SITU BY MIXING THE CONSITUENT MATERIALS WITH THE RARE EARTH OXIDES AND HEATING THE MIXTURE TO THE FIRING TEMPERATURE AT WHICH THE PHOSPHOR CRYSTALS ARE FORMED OR A PREFORMED VIRTREOUS FLUX CAN BE MIXED WITH THE RARE EARTH OXIDES AND THE SAME FIRING SCHEDULE CARRIER OUT. THE FINAL PRODUCT CAN CONTAIN UP TO 15 WEIGHT PERCENT VITREOUS FLUX IN THE LUMINESCENT MATERIAL FOR OPTIMUM PERFORMANCE AND SAID VITROUS FLUX FORMS A COATING ON THE PHOSPHOR CRYSTALS. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2017107637-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9567688-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014057110-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10807304-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2017044432-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2176375-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8114311-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2176375-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9346999-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009195141-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014302234-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9175398-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5332558-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102585817-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010140550-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2017106627-A1 |
| priorityDate |
1971-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |