http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107082878-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-06 |
| filingDate | 2017-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107082878-B |
| titleOfInvention | It is used to prepare composite catalyst and its application of aromatic copolycarbonate |
| abstract | The present invention relates to a kind of composite catalyst for being used to prepare aromatic copolycarbonate and its application, the raw material components of the composite catalyst include organic alkali catalyst and alkali ionic liquid.The composite catalyst is used in the preparation process of aromatic copolycarbonate: using dihydroxy compounds and carbonic diester as raw material, using non-phosgene ester-interchange method polycarbonate synthesis；Wherein, the molar ratio of dihydroxy compounds and carbonic diester is 1:(1.015~1.1), the dosage of composite catalyst is the 0.5%~5% of dihydroxy compounds quality.Using composite catalyst provided by the invention, the ester exchange reaction in polycarbonate synthesis process can not only carried out with fast speed at a lower temperature, but also catalyst residual quantity in polymerizate can be made to minimize；In addition, avoiding negative effect suffered by product polycarbonate application performance to the maximum extent while assigning polymerizate property. |
| priorityDate | 2017-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.