http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108948339-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-06 |
| filingDate | 2018-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108948339-B |
| titleOfInvention | Device and method for preparing aromatic polycarbonate |
| abstract | The present invention provides an apparatus and a method for preparing an aromatic polycarbonate, comprising: a raw material batching tank; the transesterification reactor is connected with the raw material batching tank; a prepolymerization reactor connected with the transesterification reactor; and the polycondensation reactor is connected with the prepolymerization reactor and is characterized in that the ester exchange reactor is a high-pressure ester exchange reactor. The ester exchange reaction of the invention adopts pressurization operation, which can effectively inhibit the generation of branched chain by-products, improve the molecular weight of the polycarbonate and obtain high-quality polycarbonate products. |
| priorityDate | 2018-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.