http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20010108496-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-605 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-60 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-60 |
| filingDate | 2001-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2001-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20010108496-A |
| titleOfInvention | Meta-form wholly aromatic polyamide fiber and process for producing the same |
| abstract | A method for producing a uniform and dense meta-type wholly aromatic polyamide fiber, comprising: a meta-type wholly aromatic polyamide containing m-phenylenediamine isophthalamide unit as a main repeating unit is dissolved in an amide compound solvent to To prepare a solution; The polymer solution is extruded in the form of fibers through an orifice of the spinneret into a coagulation bath comprising water and an amide compound solvent but substantially no salt, and the polymer solution in a wet spinning step of coagulating the resulting fibrous polymer solution in the coagulation bath. Apply; In the stretching step of stretching the fibers in a calcined stretching bath containing an aqueous solution of an amide compound solvent, the resultant porous non-stretched fibers formed by coagulation are applied; The resulting stretched fiber is washed with water; The washed fibers are subjected to a heat treatment step (eg, further stretching the fibers at an elongation of 0.7 to 4.0 with heating at 250 to 400 ° C.). |
| priorityDate | 2000-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 86.