http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114222774-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7591d2499cac8aacbf6914a6676e135e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G16C60-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 |
| filingDate | 2020-08-03^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7eb580d0a93c1b25fce0b63a775ab15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec259a4cc0a42b3902da4fb404c0b271 |
| publicationDate | 2022-03-22^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114222774-A |
| titleOfInvention | Preparation method of polycarbonate |
| abstract | The present invention relates to a melt transesterification process for the production of polycarbonate from dihydroxyaryl compounds and diaryl carbonates. The method according to the invention is characterized in that the reaction rate between the dihydroxyaryl compound and the diaryl carbonate is monitored and controlled. In particular, the reaction rate between the dihydroxyaryl compound and the diaryl carbonate is monitored, and if the reaction rate falls below a predetermined value, the reaction rate is increased again. |
| priorityDate | 2019-08-08^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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