http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009249798-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_129e393582e6bdf4029baf2206522f45 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-18 |
| filingDate | 2008-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36f4976dddcb6c2d7e18912bba84e094 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ac5b2e13758b0cde73e0b7459e1153b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6043758a0dd3631fd60577e4e9f80e39 |
| publicationDate | 2009-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2009249798-A |
| titleOfInvention | Method for producing carbon fiber precursor fiber |
| abstract | 【Task】 In order to reduce the cost of carbon fibers, a PAN-based polymer for producing carbon fiber precursor fibers that can increase the spinning speed by having a specific molecular weight distribution is used, and the amount of residual acrylonitrile is small and gel is produced. The present invention proposes a method for stably producing carbon fiber precursor fibers with less foreign matter and with reduced contamination. [Solution] A polyacrylonitrile system in which Mz / Mw, which is a ratio of the weight average molecular weight Mw and the Z average molecular weight Mz, obtained by copolymerizing at least one acid monomer selected from the group consisting of acrylic acid, methacrylic acid and itaconic acid is 2 or more Spinning in which the polymer is dissolved in a solvent, the content ratio of acrylonitrile is 0.001 to 0.1% by weight, and satisfies at least one requirement selected from the following [a] to [c] A method for producing a carbon fiber precursor fiber obtained by spinning a solution to obtain a coagulated yarn, followed by washing with water to obtain a carbon fiber precursor fiber. [A] In the polyacrylonitrile-based polymer, the hydrogen ion of the carboxylic acid group derived from the acid monomer is 0 to 0.00% of the contained carboxyl group by at least one ion selected from the group consisting of ammonium ion and sodium ion. 3 equivalents are replaced. [B] The spinning solution contains 0.01 to 3% by weight of an alkylating agent based on the weight of the spinning solution. [C] The spinning solution contains 0.01 to 3% by weight of an organic carboxylic acid having a boiling point of 200 ° C. or more based on the weight of the spinning solution. [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110832127-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020015997-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110832127-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2017186682-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11286583-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109312497-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2018003836-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101577429-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102240016-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109537106-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-6338023-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-6460284-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018003836-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012197548-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019012999-A1 |
| priorityDate | 2008-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 96.