http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2017527705-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2331-021 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2401-063 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2401-061 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-805 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F1-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-32 |
| filingDate | 2015-08-19^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-09-21^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2017527705-A |
| titleOfInvention | High-strength copolymerized aramid fiber and method for producing the same |
| abstract | The high-strength copolymer aramid fiber of the present invention is composed of an aramid copolymer containing an aromatic group substituted with a cyano group (—CN), and has an intrinsic viscosity (IV) of 6.0 to 8.5. The dispersion index (PDI) is 1.5 to 2.0, the strength is 23 to 32 g / d, and the elastic modulus is 1,100 to 1,300 g / d. The high-strength copolymer aramid fiber is prepared by adding paraphenylenediamine and cyano-para-phenylenediamine and terephthalic acid dichloride in order to an organic solvent and reacting them to produce a copolymer aramid fiber. It can be produced by a method in which a neutralizing agent is added to an organic solvent and dispersed before phenylenediamine and cyano-para-phenylenediamine react with terephthalic acid dichloride. In the present invention, hydrogen chloride (HCl) generated by the polymerization reaction of paraphenylenediamine and cyano-para-phenylenediamine and terephthalic acid dichloride is directly removed by a neutralizing agent dispersed in a solvent, and converted into a metal salt. As a result, acid flakes are not formed, but rather additional salts are formed, so that the gelation by acid flakes is delayed, that is, the reaction time is prolonged, and the high intrinsic viscosity (IV) and low While having a dispersion index (PDI), it is possible to produce an aramid copolymer excellent in solubility in an organic solvent by forming an additional salt, and using the aramid copolymer, a high-strength copolymer aramid fiber Can be produced with good radioactivity without using sulfuric acid. [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2018529031-A |
| priorityDate | 2014-08-20^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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