http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S63278945-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cebc9740ef706cde29e885504f274ffa |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01D5-247 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-94 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate | 1987-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_710138df486ca8f24b948dfb2f8600bc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_24507667dd90a455f93a362d3a1198d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f4d4ca3d3a7d265655ad9934a3964a0 |
| publicationDate | 1988-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S63278945-A |
| titleOfInvention | Porous membrane |
| abstract | PURPOSE: To obtain a porous membrane having a high water flux, excelling in heat resistance, chemical resistance, storage stability and handleability and suited for treatment of condensate, treatment of water for supercritical pressure boilers, comprising a mixture of a specified polyether-imide with a polybutadiene. n CONSTITUTION: A saturated vapor or mist-containing vapor of a poor solvent which is miscible with component B and does not dissolve component A (e.g., water) is fed at a rate of 0.1W1,000mg/sec.cm 2 and forcibly contacted with at least either surface of a thin-film object formed from a 2W40wt.% concentration polymer solution formed by dissolving a mixture (A) of 99W90pts.wt. polyether-imide (a) having a weight-average MW ≥30,000 and repeating units of the formula (wherein n is 1W7), obtained by polycondensing phenoxyphenyldicarboxylic acid with phenylenediamine, with 1W10pts.wt. polybutadiene (b) of a weight-average MW of 1,000W10,000 in a good solvent (B) such as N-methylpyrrolidone to obtain a porous membrane of an average pore diameter ≤0.20μ, a thickness ≥50μ and a water flux ≥25ml/cm 2 .min.10psi. n COPYRIGHT: (C)1988,JPO&Japio |
| priorityDate | 1987-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.