http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019094589-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/D01F6-18 |
| filingDate | 2017-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_63dcfc60a98028afc198321e52196721 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3ec9ae7ba62644443fd0c257f7c72d8 |
| publicationDate | 2019-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2019094589-A |
| titleOfInvention | Method for producing precursor fiber for carbon fiber |
| abstract | PROBLEM TO BE SOLVED: To provide a method for producing a precursor fiber for carbon fiber capable of producing high-quality carbon fiber by suppressing the generation of undissolved matter and air bubbles in a spinning stock solution. A method for producing a carbon fiber precursor fiber comprising mixing a polyacrylonitrile polymer with a powdery solvent, dissolving it under reduced pressure, and thereafter spinning and drawing. Furthermore, both the polyacrylonitrile-based polymer and the solvent are in the form of powder, and the mixing is performed under reduced pressure, and the diameter of the powder-form polyacrylonitrile-based polymer is 1000 μm. It is preferable that it is the following and the diameter of the powdery solvent is 1000 micrometers or less. Furthermore, the mixing time under reduced pressure in the powder state is 10 minutes or more, that the solvent in the powder state is solidified below the freezing point and pulverized in a mixer, -0 under reduced pressure Conditions under a pressure of 10 to -0.02 MPa, a temperature at which the polyacrylonitrile-based polymer is mixed with the powdery solvent at a temperature 10 ° C. or more lower than the melting point of the solvent; The mixing ratio of the acrylonitrile polymer to the solvent is preferably 15/85 to 40/60. [Selected figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115506049-A |
| priorityDate | 2017-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 16.