| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_965942e7ea8701e32948bb3757b553b1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2381-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31931
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-24967
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-266
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-1376 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0011
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate |
1983-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1986-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69ef98dff993c66cf52dafe543c36b0f |
| publicationDate |
1986-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4568579-A |
| titleOfInvention |
Asymmetrical layered structures of polyalkylene sulfone resins |
| abstract |
Asymmetrical layered structures such as asymmetrical films are disclosed. The main body section contains a multitude of pores (voids). A thin surface skin is free of pores. The entire structure is fabricated from a polyalkylene sulfone resin in which the alkylene moiety contains 6 to 18 carbon atoms. Processes for preparing the structures also are disclosed. The structures are semi-permeable to gases and are used as membranes to enrich the oxygen content of oxygen/nitrogen mixtures. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4728346-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5002590-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4880441-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8904206-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5614309-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004260229-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4871379-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4783201-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4954143-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4881954-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4717395-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4838904-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4990165-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5131261-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9295941-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5049169-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-RE33502-E
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6171533-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4822382-A |
| priorityDate |
1983-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |