http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5136110-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-15 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-12 |
| filingDate | 1990-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1992-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a2a8d621d45b5dc01223a277f94bcb4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c707753dc14bfb171991e7bda80a0233 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42dc646ee88690410e4e670369649e8e |
| publicationDate | 1992-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5136110-A |
| titleOfInvention | Process for the preparation of bisphenols |
| abstract | The invention is a process for the preparation of triaromatic bisphenols reacting a phenolic compound, e.g. phenol, with a suitable halo-compound, for instance 1,1-dichloroethylbenzene, 1-chlorostyrene, or mixtures thereof. The reaction may be conducted in the presence or absence of a solvent; an excess of the phenolic compound can serve as the solvent. The product is conveniently recovered by removing the by-product HCl, excess phenolic compound, excess solvent and cooling. Yields of bis-1,1-(4-hydroxyphenyl)-1-phenylethane which are greater than 90% of theoretical have been obtained by the reaction of phenol and 1,1-dichloroethylbenzene and a large portion of the yield is para isomer. Suitable halo-compounds include aromatic dihalo-compounds having at least one aliphatic substituent having two alpha-halogen atoms and at least one beta halogen atom, halo-styrenes having structures corresponding to such aromatic dihalo-compounds except that an alpha-halogen atom and a beta hydrogen atom are removed and there is a double bond between the alpha and beta carbon atoms, trihalotoluenes, and dihalocyanotoluenes. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009076314-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5756781-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5382710-A |
| priorityDate | 1990-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 192.