| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_692dc75829481c48c017b52f352e2bad |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-36 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0016
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-06 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K105-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K27-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C41-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate |
1986-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1988-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_938839e05e9e7772931bf911b5c936ea
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f44e453dbd9864518dee44f8244fdb5 |
| publicationDate |
1988-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4772440-A |
| titleOfInvention |
Method for production of porous membrane |
| abstract |
In a method for the manufacture of a porous membrane by the steps of causing a polymer solution to flow and spread in a uniform thickness on a substrate and solidifying the formed layer of the polymer solution in a bad solvent, the improvement which comprises using a fluorinated hydrocarbon as the bad solvent and optionally carrying out the removal of a good solvent mingling into the fluorinated hydrocarbon during the course of the solidification by the technique of extraction from water, and repeating the fluorinated hydrocarbon. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006121267-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2019009222-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0497334-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4898698-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10745555-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11185826-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2022259343-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014131268-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7820281-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5772935-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9522989-B2 |
| priorityDate |
1985-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |