http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107163240-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 |
| filingDate | 2017-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107163240-B |
| titleOfInvention | The immobilized ionic-liquid catalyst of melt transesterification process polycarbonate synthesis |
| abstract | The present invention relates to a kind of immobilized ionic-liquid catalyst of melt transesterification process polycarbonate synthesis, the raw material components of immobilized ionic-liquid catalyst include ionic liquid and the transistion metal compound for being grafted with chain-transferring agent；Wherein, transistion metal compound includes transition metal chalcogen and/or chalcogenide；The molar ratio of ionic liquid and transistion metal compound is (1~8): 1.The immobilized ionic-liquid catalyst is used in the preparation process of polycarbonate: using dihydroxy compounds and carbonic diester as raw material, using melt transesterification process polycarbonate synthesis；Wherein, the molar ratio of carbonic diester and dihydroxy compounds is (1.01~1.2): 1, the dosage of immobilized ionic-liquid catalyst is the 0.5%~5% of dihydroxy compounds quality.Process for synthetic catalyst of the present invention is simple, and catalyst choice and activity are high, and then have dramatically speeded up the process of polycarbonate industrial applications. |
| priorityDate | 2017-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.