http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20030012223-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dd7c27b9ec61781656e6f039702fd568 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-225 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-2281 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08 |
| filingDate | 2001-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f6a5e388331b7c8e1cfe3d85d2a6230 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c8a095fadfd94ec98c0787fd1dd2478 |
| publicationDate | 2003-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20030012223-A |
| titleOfInvention | Preparation of asymmetric porous polyvinylidene difluoride hollow fiber membrane for membrane contactor |
| abstract | The present invention relates to a method for preparing asymmetric microporous polyvinylidene difluoride hollow fiber membranes for membrane contactors, and more particularly, to specific pore formers, pore growth inhibitors and solvents in polyvinylidene difluoride (PVDF). Preparing a spinning solution containing a predetermined amount, preparing the spinning solution into an asymmetric microporous polyvinylidene difluoride hollow fiber membrane using a phase-transfer process, and immersing the hollow fiber membrane in hot water and then immersing in ethyl alcohol. The present invention relates to a method for producing an asymmetric microporous polyvinylidene difluoride hollow fiber membrane comprising a step of drying, having a very high porosity (surface porosity of 70% or more) and a pore size of the surface skin layer suitable for the membrane contactor compared to the prior art As membrane contactor for absorption and desolvation gas process When a method of manufacturing a microporous asymmetric PVDF hollow fiber membrane having a separation performance of high efficiency. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111530304-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108993173-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100850167-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101035717-B1 |
| priorityDate | 2001-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.