| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e9e43d0f9b617aa7349928b701559df5 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-0544 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0011
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-00 |
| filingDate |
1984-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d81a0021dc8e42b2b8775d2c0a09d316
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88cebae76d402611006b1f993dd1be78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a433e1607adce0f028961308743de652 |
| publicationDate |
1985-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0143812-A4 |
| titleOfInvention |
FORMATION OF POROUS MEMBRANES. |
| abstract |
A method of preparing a porous membrane which includes the steps of dissolving a thermoplastic material which has both relatively non-crystalline and relatively crystalline portions into a solvent under conditions of temperature and time which cause the relatively non-crystalline portions of the thermoplastic to dissolve while at least a portion of the relatively crystalline portions of said thermoplastic material do not dissolve, but form a colloidal dispersion in said solvent. The colloidal dispersion and solvent are formed into a film, thereafter causing precipitation of the dissolved thermoplastic portions in the said film, to form a porous membrane. |
| priorityDate |
1983-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |