http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107803122-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-36 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0011 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-145 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-14 |
| filingDate | 2017-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107803122-B |
| titleOfInvention | PVP-VA copolymer-containing hydrophilic ultrafiltration membrane and preparation method thereof |
| abstract | The invention discloses a hydrophilic ultrafiltration membrane containing PVP-VA copolymer, which is prepared from the following components in percentage by mass: 15-25% of a high polymer film material, 58-86.5% of a polar solvent, 1-9% of a PVP-VA copolymer, 0.5-5% of a high polymer pore-forming agent and 0-3% of an additive, wherein the sum of the mass percentages of the components is 100%. The hydrophilic ultrafiltration membrane containing the PVP-VA copolymer has a reasonable and scientific formula, delays the loss of hydrophilic substances, improves the anti-pollution capability and prolongs the service life. The invention also discloses a preparation method of the hydrophilic ultrafiltration membrane containing the PVP-VA copolymer, the NIPS method is adopted, the hollow fiber ultrafiltration membrane with the support is spun by using spinning equipment, the operation is simple, the prepared ultrafiltration membrane has stable structure and performance, and the industrial production is easy to realize. |
| priorityDate | 2017-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.