| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-46 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-46 |
| filingDate |
1976-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1981-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a93d388fe8b76ba727889f380eca7edb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e827459ace9306ae16c470981948624e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e41cd5aac7fc6e10a204cf50b18c41a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d571160c554aeec06a0b828aa814823f |
| publicationDate |
1981-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1101161-A |
| titleOfInvention |
Semipermeable membranes of copolyamides |
| abstract |
Semipermeable membranes of copolyamides Abstract of the Disclosure The invention relates to semipermeable membranes with a water absorption capacity of from 4.5 to 10 % by weight preferably from 4.5 to 8% by weight as measured on approximately 40 µ thick symmetrical films at room temperature and 65 % relative air humidity, with a throughflow of at least 80 1/m2d for a desalination level of at least 85 % and consisting of a fully aro-matic copolyamide with a relative viscosity of z1,4, as measured on a 0.5 % N-methyl pyrrolidone solution at a temperature of 20°C. Le A 16 828-Ca |
| priorityDate |
1975-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |