http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S57159802-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_52a65b677bbedbe7bf090dd556a7cc43 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B15-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B15-00 |
| filingDate | 1981-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0b64e730cc88aec7047fe1011f024838 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_736f2cac21751aa5384f66ae21491c2c |
| publicationDate | 1982-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S57159802-A |
| titleOfInvention | Production of porous cellulose material |
| abstract | PURPOSE: To form a porous cellulose material suitable as a filter medium used in, for example, gel filtration, by immersing a cellulose material having a predetermined shape in a mixture of dimethyl sulfoxide (DMSO) and formaldehyde, under agitation, to swell the material and then purifying the swollen material. n CONSTITUTION: 1pt.wt. cellulose material having a predetermined shape (e.g., regenerated cellulose particle having a predetermined particle size) is mixed with about 15W50pts.wt. DMSO and about 0.1W1.3pts.wt. formaldehyde at 0W130°C for 5W30min to swell the cellulose material. Then, the swollen material is filtered and washed with, for example, a lower alcohol or water to remove formaldehyde. Next, the material is purified to obtain a porous cellulose material. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02222401-A |
| priorityDate | 1981-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.