| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-16 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-16 |
| filingDate |
1996-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4993e73a082f215dffbb1b07f2e35425
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ad58d159b4d18c4cdd71401336f714f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_026f01ab87ed7c82bb03d7ea6e91576c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_06195992aa724ed8fe63a2920765df45 |
| publicationDate |
1998-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0876319-A1 |
| titleOfInvention |
Improved process for the production of bisphenols |
| abstract |
An improved process for the production of bisphenols is presented in which ketones and phenols are reacted in the presence of an acidic cationic exchange resin catalyst and a mercaptan cocatalyst. Prior to the reaction, alkyl alcohol is removed from the ketone stream. Cocatalyst is withdrawn from the reactor so that cocatalyst derivatives such as disulphide ions can be removed from the presence of the catalyst thereby reducing the possibility of catalyst poisoning. |
| priorityDate |
1995-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |