http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59228017-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_13acffa0e4ce30d3be128ccd86b384f6 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B5-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01D5-24 |
| filingDate | 1983-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4d45af1e05ea31f35cf161a8da4bd76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7beda6f15539affbd190830cade0f065 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_724c787a71205ed03ffc5369a292d069 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9035ad7428cdf879875f6f4590cd9ec8 |
| publicationDate | 1984-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59228017-A |
| titleOfInvention | Preparation of hollow yarn membrane of aromatic polysulfone |
| abstract | PURPOSE: To obtain hollow yarn having improved water permeability and mechanical strength, by dissolving an aromatic polysulfone in a mixed solution of a solvent and a nonsolvent, extruding the prepared solution from the outer pipe of a nozzle of double pipe type, bringing a coagulating solution into contact with one surface of extruded material, bringing air into contact with the other, immersing the material in water. n CONSTITUTION: An aromatic polysulfone is dissolved in a solution of a polar organic solvent such as N-methyl-2-pyrrolidone, dimethyl-formamide, etc. and 20 W45wt.% nonsolvent such as ethylene glycol, etc. to give 10W30wt.% solution, which extruded from the outer pipe of a nozzle of double pipe type. In the operation, one of the outer and the inner sides of the tubular solution is brought into contact with a coagulating solution such as water, etc., and the other, with air. The solution is then immersed in water, the solvent and the nonsolvent are extracted to give hollow yarn. The hollow yarn has 10W100Å very small holes at the side brought into contact with the coagulating solution and 0.05W5μ pores at the other. n COPYRIGHT: (C)1984,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0457915-A |
| priorityDate | 1983-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.