http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S57135009-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/B01D71-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 |
| filingDate | 1981-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d16ea1ecf2b50368b0ff482feddb1a8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93b8acf86386c52851c0a85d3fba1178 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a895af1f3f72c811af5f0396a195c48b |
| publicationDate | 1982-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S57135009-A |
| titleOfInvention | Preparation of regenerated cellulose film with selective permeability |
| abstract | PURPOSE: To form the regenerated cellulose film with improved selective permeability by a method wherein two kinds of plasticizers having different solubilities are added to cellulose triacetate and, after the obtained mixture is melted and formed into a film, the resulting film is saponified. n CONSTITUTION: In 100pts.wt. cellulose triacetate with 60% acetylation degree, 40pts.wt. fluforane as a good solvent plasticizer and 20pts.wt. polyethylene glycol as a poor solvent plasticizer are mixed. The resulting mixed solution is held between ferrotype plates and melted and formed into a film at 240°C under pressure to obtain the flat film with 65μ thickness. The obtained film is immersed in 3.0% NaOH aqueous solution for 3min at 30°C to be saponified and, thereafter, sufficiently washed by water. The obtained regenerated cellulose film has physical properties such that a film thickness is 54 μm, permeation velocity of pure water is 2.3ml/m 2 .hr.mmHg, strength is 1.08kg/mm 2 , elongation is 88% while Young's modulus is 2.23kg/mm 2 . n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107875864-A |
| priorityDate | 1981-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.