| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7580a1cdb7bf704802f84446f901fbf7 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1078
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1042 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-64 |
| filingDate |
1990-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37566f532db33332d6039a1cbeb636d5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c29d8105d7d4e7b891a92cd1781f226
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c7620f076763c92f14c05a5f58a3d01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ab084b76568787489f1b8ebe7364f0d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_44ebbdd5d2a55f1340c5ae9a885a55ca |
| publicationDate |
1991-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0413624-A1 |
| titleOfInvention |
Gas separation membrane |
| abstract |
A gas separation membrane is described comprising a film with a thickness of between 0.05.10⁻⁶ and 20.10 dont m, at least 90% molar of which consists of at least one aromatic polyimide or copolyimide, the recurring unit of which corresponds to the following formula (I): where A represents a tetravalent aromatic radical or a mixture of tetravalent aromatic radicals. and B represents a divalent aromatic radical of which at least 50 mol% are represented by the following formula (II): said formula (I) being different from the following formula (III): |
| priorityDate |
1989-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |