| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_efbc93fa15ca59046e84ca5c5c84c433 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G16C60-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G16C60-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-04 |
| filingDate |
2020-08-03^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_839c85d8434ee17f1f20425d312d273c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_302fc4b5e539317fe2f2b32b22c048a3 |
| publicationDate |
2022-04-12^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20220045150-A |
| titleOfInvention |
How to prepare polycarbonate |
| abstract |
The present invention relates to a melt transesterification process for preparing polycarbonates from dihydroxyaryl compounds and diaryl carbonates. The process according to the invention is characterized in that the rate of the reaction between the dihydroxyaryl compound and the diaryl carbonate is monitored and controlled. In particular, the rate of the reaction between the dihydroxyaryl compound and the diaryl carbonate is monitored, and the rate of the reaction is increased again if the rate of the reaction falls below a predetermined value. |
| priorityDate |
2019-08-08^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |