http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5570304-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_13acffa0e4ce30d3be128ccd86b384f6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate | 1978-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e420820009b6197d0f0e9fbcbfe75e80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_724c787a71205ed03ffc5369a292d069 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68f8740c5259e2946fb4dbd64ba1e841 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7beda6f15539affbd190830cade0f065 |
| publicationDate | 1980-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5570304-A |
| titleOfInvention | Production of dry membrane with selective permeability |
| abstract | PURPOSE:To obtain a dry membrane simply at low cost by coating a substrate with a dope solution containing a copolymer, immersing the substrate in water to obtain a wet membrane, separating the wet membrane from the substrate and drying the membrane without causing shrinkage. CONSTITUTION:A substrate is coated with a dope solution containing 10-40% by weight of ethylene-vinyl alcohole copolymer having ethylene content of 10- 60mol%. The resulting substrate is immersed in water or aqueous solvent at a temperature of -5-10 deg.C to obtain a wet membrane having an average pore size of below 0.1mu. The wet membrane is separated from the substrate, placed in a frame to prevent shrinkage, and dried at a temperature of 10-40 deg.C. A preferred solvent for the dope solution is dimethyl sulfoxide or a mixture of dimethyl sulfoxide and water. It is possible to produce a composite membrane by using a porous non-woven fabric sheet or a non-woven fabric tube as the substrate. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0679149-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H08255867-A |
| priorityDate | 1978-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.