| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7c268becaa3561b754a355d31b94c319 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S264-18 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-122 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B7-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-44 |
| filingDate |
1988-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1989-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e7296d40771ae38c887440983e8675a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dfda4038c6314a50010b9443c7d43041
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b3b0b2cd867014d1b73fa4a0020e269
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78e2b1a40eef5d6d341cc1ac4e2a85d1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c40dcbaa4e2c8b0c1b9a799a1cc92231 |
| publicationDate |
1989-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4873033-A |
| titleOfInvention |
Process for the production of hyperfiltration membranes |
| abstract |
The invention relates to a hyperfiltration membrane containing a supporting layer and a separation layer. The membrane is characterized in that the separation layer consists of a crosslinked monomolecular film of molecules, the molecules of the separation layer in the uncrosslinked state being surfactants or surfactant-like lipoids containing at least one hydrophobic chain and at least one hydrophilic group, the hydrophobic chains of these molecules being oriented mainly perpendicularly to the plane of the membrane and parallel to the diffusion direction after crosslinking and the molecules of the separation layer being crosslinked with one another through functional groups in at least one of their hydrophobic chains and/or through functional groups in at least one of their hydrophilic groups. n The invention also relates to a process for the production of hyperfiltration membranes in which the surfactant molecules or the surfactant-like lipoid molecules are spread out under a certain spreading pressure or occupying an average space over the surface of an aqueous solution or at the interface between an aqueous solution and a liquid immiscible therewith, the surfactant molecules or the surfactant-like lipoid molecules are crosslinked with one another and the separation layer crosslinked in this way is applied to a supporting membrane. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6544419-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6544418-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112667101-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6306406-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-648128-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6103172-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112667101-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5741551-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5512329-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6306301-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6139742-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5955353-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6274043-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5436170-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5098569-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6103121-A |
| priorityDate |
1981-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |