http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-352139-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2b8b744d430e252fa21c14c2b8dee176 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K- |
| filingDate | 1968-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1969-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-352139-A1 |
| titleOfInvention | METHOD OF PREPARING A LUMINESCENT MATERIAL. |
| abstract | Method of preparing a luminescent material having a composition that complies with the formula M'(2-x) M''xO2S, in which M' is a member of the group consisting of the elements yttrium, gadolinium and lanthanum, M'' is at least one member of the group of lantanide elements that have an atomic number between 57 and 64 and between 64 and 71, and x is a number less than 0.2 and greater than 0.0002, characterized by melting a quantity of a rhodanide of at least one of the elements sodium and potassium, heat the melt to a temperature of 300 to 700ºC, then dissolve in the melt the amounts of the oxides of the elements M'and M''required for the formation of luminescent substances with the desired composition, keep the melt at a temperature between 200 and 700ºC for at least two minutes and finally cool it down to room temperature. (Machine-translation by Google Translate, not legally binding) |
| priorityDate | 1968-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.