| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B3-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-88 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-88
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B3-25 |
| filingDate |
1998-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2003-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_891b45bf984287532ea62ebe3b99f61d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d97dbe53fa0740d9bd029621ec6b58d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb33c34a7b76ffeea07056390b9c3e7b |
| publicationDate |
2003-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1017689-B1 |
| titleOfInvention |
Method for purifying phthalides |
| abstract |
Pure phthalides are produced from the reaction mixtures obtained in the phthalide production process by a) distilling off compounds with a boiling point below the boiling point of the phthalide from the reaction mixture, if such compounds are present, to obtain a residue of crude phthalide, and b) crystallising phthalide from a melt of the crude phthalide. |
| priorityDate |
1997-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |