http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111065670-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 |
| filingDate | 2018-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111065670-B |
| titleOfInvention | Method for recovering phenol in melt polycarbonate polymerization |
| abstract | In one embodiment, a method of making a melt polycarbonate comprises melt polymerizing a bisphenol and diphenyl carbonate in a polymerization unit to form phenol and a melt polycarbonate; removing an overhead stream comprising gas phase phenol from the polymerization unit; combining the overhead stream with a gas stream comprising a vapor phase solvent to form a combined gas stream; wherein the combined gas stream has a freezing point less than the triple point of phenol at less than 3 millibar absolute; and condensing the combined gas stream in a condenser to form a condensed stream comprising liquid phase phenol and solvent. |
| priorityDate | 2017-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 145.