http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H119979-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate | 1997-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_238bc7b49c1b253e3b08ac8e3f5b170a |
| publicationDate | 1999-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H119979-A |
| titleOfInvention | Polyimide gas separation membrane |
| abstract | (57) [Problem] To provide a gas separation membrane which can easily form a defect-free thin film and has a high separation property. SOLUTION: General formula (1) (X represents a hydrocarbon group having 1 to 20 carbon atoms or a sulfur atom. R represents a halogen atom, a hydrocarbon group having 1 to 6 carbon atoms, or a halogen-containing hydrocarbon group having 1 to 6 carbon atoms, and a is 0 The number of substituents is represented by an integer of from 4 to 4. And a diamino compound represented by the general formula (2): (Y represents a tetravalent organic group having 2 or more carbon atoms.) A gas separation membrane formed by forming a polyimide film obtained by reacting a tetracarboxylic dianhydride represented by the following formula: |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7771518-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6346732-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4507894-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006198589-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4873201-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6395621-B1 |
| priorityDate | 1997-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 152.