http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5958042-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-22 |
| filingDate | 1982-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_373b4b8257db6b79e5fffefcfe38bca1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bdcb1ee024be16591c948fa08bf7ad9f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e27767520b2ba832ec5f1b3cda4266e |
| publicationDate | 1984-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5958042-A |
| titleOfInvention | Porous polysulfone membrane |
| abstract | PURPOSE: To prepare the titled membrane having microscope pores and excellent surface smoothness, and suitable as a membrane filter, a supporting membrane, etc., by the coagulation film-forming of a solution composed of a polysulfone polymer having low content of low-molecular weight component and its solvent in a coagulation bath. n CONSTITUTION: A polysulfone solution is prepared by dissolving a polysulfone polymer containing ≤0.1wt% of a low-molecular weight component having a molecular weight of 800W1,200, preferably a polymer having a molecular weight of 5,000W300,000 and containing ≥50mol% of the recurring unit of formula I or formula II, in a solvent which can dissolve ≥5wt% of said polymer at ≤50°C (especially N-methyl-pyrrolidone, etc.). The concentration of the polymer in the solution is 5W50wt%. The solution is formed to a flat film or hollow fiber, etc. The formed product is immersed and coagulated in a coagulation bath (water or a mixture or water and an organic liquid) to obtain a porous membrane having an average pore diameter of 100AW5μ and a void volume of the whole membrane of 30W90%. n COPYRIGHT: (C)1984,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2014156526-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5279739-A |
| priorityDate | 1982-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.