http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0558621-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8b919a09598a02c07e8429b1441b76e1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-43 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43 |
| filingDate | 1991-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_40519434652a61245b14be859200b819 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08946b387adce814224800a69900c3b6 |
| publicationDate | 1993-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0558621-A1 |
| titleOfInvention | PROCESS FOR IMPROVING THE FLOW CHARACTERISTICS OF CRYSTALLINE IBUPROFENE. |
| abstract | A process for producing crystalline ibuprofen having a crystal shape which is characterized by a particle length greater than 75 microns on average and a geometric length to width ratio exceeding about 4:1 and up to about 5:1. The process involves crystallizing ibuprofen from a saturated solution of ibuprofen in a liquid hydrocarbon solvent by seeding and cooling such solution to a temperature between approximately 0°C and about -20°C at a rate intended to retard the formation of primary seed crystals and promote the formation of secondary seed crystals. Crystalline ibuprofen is separated from the sludge produced by such cooling. |
| priorityDate | 1990-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.