| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D317-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D321-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G4-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D321-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-06 |
| filingDate |
1991-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1992-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d8dd4e2727b464be7df6f600f012d9e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db4d1b355da26670cd3096e63a296fc0 |
| publicationDate |
1992-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5164516-A |
| titleOfInvention |
Purification of cyclic ketene acetals |
| abstract |
An improved process for the purification of cyclic ketene acetals such as 2-methylene-1,3-dioxepane is provided. This process entails the purification of the cyclic ketene acetal by distillation in the presence of a solvent and an amine. |
| priorityDate |
1991-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |