| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_47becd0bad1e8c65826be1edac09d306 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-32 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y30-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-34 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-34 |
| filingDate |
1989-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1990-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b5f348c69a12f0c5d7573603fb47baf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1afdf55188994a6b6dd64c1cae79a934 |
| publicationDate |
1990-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4902494-A |
| titleOfInvention |
Process for preparing hydrated alumina consisting essentially of spherical particles by homogeneous precipitation |
| abstract |
A process for preparing hydrated alumina consisting essentially of spherical particles having a narrow granulometric distribution (polydispersion index dw/dn</=2) starting from aqueous solution of aluminum sulphate, the molar ratio SO4=/Al3+ being greater than 1, by homogeneous precipitation in the presence of cationic polyelectrolytes, which are soluble under the reaction conditions and have a mean molecular weight higher than one million and an ionicity, deriving from the cationic groups present in the polyelectrolyte, of at least 3 milliequivalents/gram. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5771648-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9015019-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114471502-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114471502-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5147630-A |
| priorityDate |
1985-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |