http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113416346-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-10 |
| filingDate | 2021-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113416346-B |
| titleOfInvention | Method for preparing polyamic acid by microwave controllable breaking of carbon-nitrogen bond |
| abstract | The invention provides a method for preparing polyamic acid by microwave controllable breaking of carbon-nitrogen bonds, which comprises the following steps: polyimide resin, solvent and alkaline catalyst are prepared into a degradation system, and the degradation system is placed in a microwave reactor for degradation reaction. After the degradation, the solvent is distilled off and the acid is strengthened to obtain the polyamic acid. The method selectively breaks carbon-nitrogen bonds by using the basic catalyst under the microwave condition, controls the dosage of the catalyst to generate the polyamic acid in a controllable manner, and has the advantages of low recovery cost, mild reaction condition, normal-pressure degradation and easy separation to obtain products with high added values. |
| priorityDate | 2021-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.