http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111662453-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-0066 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-20 |
| filingDate | 2020-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111662453-B |
| titleOfInvention | Method for preparing polysulfone resin material by synergistic dehydration process |
| abstract | The invention relates to a method for preparing polysulfone resin materials by adopting a synergistic dehydration process, and belongs to the technical field of polysulfone resins. The method for preparing polysulfone resin materials using a synergistic dehydration process of the present invention comprises the following steps: (1) taking phenolic substances and dichlorodiphenyl sulfone as reaction monomers, adding solvent, acid-binding agent and dehydrating agent , feed nitrogen into the reactor after vacuuming; (2) heat up and stir, dehydrate; (3) continue to heat up and polymerize, and when the viscosity in the reactor reaches the requirement, end the reaction; (4) carry out post-treatment to obtain polysulfone resin material ; The reaction kettle adopts a dual-phase steel turbine-type stirring paddle, which is designed in conjunction with the nitrogen passage in the kettle; a dual-phase steel air pipe in the nitrogen passage enters from the lid of the kettle, and is close to the lower edge of the kettle wall, and the air pipe is a circle at the bottom of the kettle The coil is attached to the wall of the kettle. The invention has the advantages of scientific and reasonable design, simple operation, high dehydration efficiency, shortened production cycle and remarkable economic benefits. |
| priorityDate | 2020-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.