http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S57174107-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12 |
| filingDate | 1981-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_098bdf1a6464d6a745472cdbadeef4bb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_47e04185f8a193940b7b6f6875cbb172 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89b7e557493d14a297a23d5d3f7beb2c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce1a029fc50991ecc52ea993791cd5f6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bacbed8dea4a3566c785423110ce728 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8402aa5c92ef740e5a0cfdd558b33ebf |
| publicationDate | 1982-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S57174107-A |
| titleOfInvention | Production of permselective membrane |
| abstract | PURPOSE: To produce an anisotropic permselective membrane which exhibits uniform performance over a wide area by casting doping liquid on a porous substrate and drying the same partially then solidifying the same by using an aq. soln. of high osmotic pressure. n CONSTITUTION: The dope prepd. by adding 1pt.wt. polybenzimidazolone, 0.40pt. wt. LiCl, and 0.30pt.wt. Ca(NO 3 ) 2 4H 2 O to 5.1pts.wt. N-methylpyrolidone and mixing and dissolving these is cast at 300μ thickness on a nonwoven polyester fabric of 2cm 3 /cm 2 sec air permeability. After this film-like material is dried by hot wind for 5min at 120°C, it is dipped for 30min in an aq. 20wt% NaClsoln. of 240kg/cm 2 osmotic pressure, whereby it is solidified. The resultant membrane does not show "water blistering" phenomena at all, and exhibits the reverse osmosis performance of 65l/m 2 hr water permeation rate and 96.5% salt removal rate. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7955506-B2 |
| priorityDate | 1981-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.