| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d5d04736b0b882a4f5a1e0e0e4cd8cbb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_505a7de6b9d626d47129f16eace29147
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f63a58c8bdfdd208be2f95096904906b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2924-09701
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-51
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2924-0002 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-442
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L23-3733
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L23-295
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L23-15
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-407 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L23-373
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L23-15
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C1-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L23-29
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-442
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-02 |
| filingDate |
2002-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_41efee08ed52a6641627df591640adb9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82d7e40fd3f527c46b497a470192a365 |
| publicationDate |
2003-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-03055803-A2 |
| titleOfInvention |
Particulate alumina, method for producing particulate alumina and composition containing particulate alumina |
| abstract |
Particulate alumina has a mean particle size corresponding to a volumecumulative 50% mean particle size (D50) falling within a range of 3 to 6 µm, has a ratio of D90 to D10 that is 2.5 or less, contains particles that have a particle size of at least 12 µm in an amount of 0.5 mass% or less, particles that have a particle size of 20 µm or more in an amount of 0.01 mass% or less and particles that have a particle size of 1.5 µm or less in an amount of 0.2 mass% or less, and contains an α-phase as a predominant phase. In addition, the particulate alumina has a ratio of longer diameter (DL) to shorter diameter (DS) that is 2 or less and a ratio of D50 to mean primary particle size (DP) that is 3 or less. With these features, the particulate alumina has a narrow particle size distribution profile, causes little wear and exhibits excellent flow characteristics. Aiso claimed are a method for producing particulate alumina a composition containing particulate alumina and an electronic part or a semiconductor device comprising such a composition. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105754346-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102617119-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105754346-A |
| priorityDate |
2001-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |