| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_845d0c91abb5f3f5a0ea9abfbf9f531b |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D265-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D413-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D413-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D413-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-357 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D413-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D413-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D413-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D265-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-357
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K8-49
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L101-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61Q17-04 |
| filingDate |
2002-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac337c628bd46ef03666b1af65bd1852 |
| publicationDate |
2004-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1438352-A1 |
| titleOfInvention |
Low color, low sodium benzoxazinone uv absorbers and process for making same |
| abstract |
The present invention relates to benzoxazinone compounds having a yellow index less than about 0, and a sodium concentration less than about 50 ppm. This invention also relates to a process for preparing these compounds comprising the step of reacting an isatoic anydride with approximately stoichiometric amounts of an acylating compound, where the isatoic anhydride is purified by re-crystallization or other purification methods. |
| priorityDate |
2001-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |