| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_efbc93fa15ca59046e84ca5c5c84c433 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-14 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-14 |
| filingDate |
2020-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7023700e133e1e2fa0e5ee51e3f047bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c87765d8e824ee856a70c4a33ecd76d3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23a20176f7ae649a198a104b602b592a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74b8520d0648b4732197f70449c0b568 |
| publicationDate |
2021-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20210151796-A |
| titleOfInvention |
Process for making polycarbonate using reduced phosgene excess |
| abstract |
The present invention relates to a phase boundary from at least one dihydroxydialkylalkane, phosgene, at least one catalyst and at least one chain terminator, which enables the reduction of the phosgene excess by means of a specific energy input during dispersion of the aqueous and organic phases. It relates to a method for preparing polycarbonate according to the method. The process also produces polycarbonates with low proportions of oligomers and low proportions of double-chain terminator carbonate. |
| priorityDate |
2019-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |