http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6227025-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0083 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-12 |
| classificationIPCInventive | 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/B01D71-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-22 |
| filingDate | 1985-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8aac6d9a2762ca19c6e7f02021404b83 |
| publicationDate | 1987-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6227025-A |
| titleOfInvention | Composite membrane for separating gas |
| abstract | PURPOSE:To increase permeation flow rate of a composite membrane and to stabilize the same by subjecting a porous polysulfone backing membrane to a hot water treatment then forming the membrane into the composite membrane and subjecting the membrane to a heat treatment in the gaseous phase under the reduced pressure. CONSTITUTION:The porous polysulfone membrane which has <=0.5mu surface pore size and >=10<-5>g/cm<2> sec atm as the permeation rate of water measured at 25 deg.C is used as the backing membrane. Such membrane is immersed in the hot water kept at 50-130 deg.C and is thereby heat-treated. The treatment is executed for >=0.2hr. A sepn. function layer consisting of an org. high-polymer compd. is formed on such backing membrane. The thickness of said layer is made <=0.5mu. The resulted composite membrane is treated for >=0.2hr at 60-200 deg.C in the gaseous phase under the treated for >=0.2hr at 60-200 deg.C in the gaseous phase under the reduced pressure of 0.1-400Torr. The flow rate and selectivity are stabilized and the flow rate in particular is increased by about 10% by such treatment. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4871378-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04501735-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8904200-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5073175-A |
| priorityDate | 1985-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.