http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S62199631-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f22cfd2d09fb0dd22f73f9d36f5e8960 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-12 |
| filingDate | 1986-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a8aadf90550ae77cac86a630209907c0 |
| publicationDate | 1987-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S62199631-A |
| titleOfInvention | Production of polyolefin porous membrane |
| abstract | PURPOSE: To obtain a porous membrane having small average pore diameter and small maximum pore diameter readily, by sandwiching a hot solution layer consisting of a polyolefin and a solvent in between two support sheets, drawing the sheets from narrow gap, rapidly cooling and gelatinizing the solution and removing the support sheets and the solvent. n CONSTITUTION: Woven fabric or nonwoven fabric is optionally put between two support sheets, a hot solution layer which consists of a polyolefin and a solvent (decalin, etc.,) and 2W40wt% polyolefin content is sandwiched in between the two support sheets, which are drawn from narrow gap, the inner solution layer is rapidly cooled to ≥50°C, preferably ≥80°C lower temperature than that of the inner solution layer and gelatinized. The two support sheets are removed and then the solvent in the polyolefin layer is evaporated and removed by heating or vacuum drying or extracted and removed with an organic solvent (methanol, etc.,) which does not dissolve polyolefin but is soluble in the solvent to give the aimed porous membrane. n COPYRIGHT: (C)1987,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002240157-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4642250-B2 |
| priorityDate | 1986-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.