| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-022 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0018
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-22
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/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate |
2000-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2001-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20010103749-A |
| titleOfInvention |
Method for producing an integrally asymmetrical polyolefin membrane |
| abstract |
The present invention relates to an integrated asymmetric hydrophobic polyolefin-based membrane having a sponge-type continuous pore microporous support structure and a method for producing a separation layer having a denser structure than the support structure by a thermally induced liquid-liquid separation method. A molded body is obtained by extruding a solution of at least one polyolefin in a solvent system consisting of compounds (A) and (B). For polymers, compound (A) is a weak solvent and compound (B) is a nonsolvent. After releasing in the molding machine, the molded body is cooled using a solid or liquid cooling medium that does not dissolve the polymer and does not chemically react with the polymer at temperatures below the temperature of the molding machine until the phase separates and the polymer rich phase cures. |
| priorityDate |
1999-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |