| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-243
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-842 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B11-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F41-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C18-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-243
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-842
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-84 |
| filingDate |
1988-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1991-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1991-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0370067-B1 |
| titleOfInvention |
Preparation of thin layers of iron iii oxide for optical and/or magnetic recording |
| abstract |
The present invention relates to a method for preparing thin layers of ironIII oxide. This method consists in coating on a support a composition of iron oxide polymer prepared by controlled hydrolysis of a solution of iron alkoxide. The hydrolysis is controlled by using an amount of water such that water/alkoxide molar ratio, R, ranges from 3 to 15 or from 60 to 80. The invention applies to the preparation of thin layers for optical and/or magnetic recording. |
| priorityDate |
1987-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |