http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S62115043-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_692dc75829481c48c017b52f352e2bad |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0016 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-06 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K27-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K105-04 |
| 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/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C41-12 |
| filingDate | 1985-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c9bcc53ce158a98fb119356a1f99420 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f44e453dbd9864518dee44f8244fdb5 |
| publicationDate | 1987-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S62115043-A |
| titleOfInvention | Production of porous membrane |
| abstract | PURPOSE:To obtain a porous membrane having excellent performance safely and inexpensively with a working step which is easy and shortened, by dissolving a polymer in a good solvent, casting the soln. on a substrate in a given coating thickness and coagulating it in a specified poor solvent. CONSTITUTION:A polymer insoluble in fluorinated hydrocarbons such as vinylidene fluoride resin is dissolved in a good solvent such as acetone and/or dimethylformamide in such a proportion as to give a concn. of 10-25wt%, thus preparing a polymer soln. 5. The polymer soln 5. is uniformly applied to and cast onto a substrate 2 such as belt-form (blended-pulp) paper in a coating thickness of, e.g., 100-1,000mu on a support roll 3 by means of a doctor knife, said substrate being fed from a substrate roll 1 at a constant rate of, e.g., 0.1-3.0m/min. The coated substrate 2 is immediately introduced into a coagulating bath 7 contg. a fluorinated hydrocarbon 6 which is a poor solvent (e.g., CCl3CF3). While moving the substrate within the bath 7 through a turning rod 8, etc. for 1-10min, the soln. 5 is coagulated to form a porous membrane 9. The membrane is taken out of the bath 7 to evaporate the remaining poor solvent 6, and wound up around a take-up roll to obtain a porous membrane having a thickness of 50-170mu and a void content of 50-90%. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0434959-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S61164893-A |
| priorityDate | 1985-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.