http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59127603-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c186e9ae8cafab5df5c8d80cfa7b0fa1 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L81-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C71-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L81-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L81-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-22 |
| filingDate | 1983-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f993cf52599037ca453d27469f60928c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36793fae8dc580360703a1ae8ccd5171 |
| publicationDate | 1984-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59127603-A |
| titleOfInvention | Gas permselective membrane and preparation thereof |
| abstract | PURPOSE: To obtain an asymmetric pore size gas permeable membrane having excellent mechanical characteristics and heat resistance at low cost, by using polyetherimide as a base material. n CONSTITUTION: The titled membrane is formed of a mixture consisting of polyetherimide having a recurring unit shown by a formula I and a polymer having a recurring unit shown by a formula II. The asymmetric pore size membrane having such composition is obtained by a method wherein the mixture of the above mentioned polymers is dissolved in a solvent mixture prepared by adding a low b.p. solvent in a chlorine type solvent, an amide type solvent or a cyclic nitrogen-containing solvent as a swelling agent to obtain a solution which is then uniformly cast on a support and, after a part of the solvent is evaporated, the whole is immersed in water to gel the cast layer. By further depositing membrane with a thickness of 1μm or less to the surface of the dense layer of this membrane by the plasma polymerization of a compound having tertiary carbon or an org. silane compound, gas selectivity can be enhanced while maintaining high permeability. n COPYRIGHT: (C)1984,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S60172304-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0549882-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S63296822-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H049086-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4948400-A |
| priorityDate | 1983-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.