http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103233292-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P70-62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F13-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01D1-02 |
| filingDate | 2013-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103233292-B |
| titleOfInvention | A kind of preparation method of meta-aramid fibers |
| abstract | The present invention relates to the preparation method of a kind of meta-aramid fibers, it is characterised in that comprise the steps: to use and be polymerized special poly(isophthaloyl metaphenylene diamine), hydrogen chloride and N, the spinning solution of N dimethyl acetylamide three component；After solution deaeration, heater via heats, and after extrude into the hot path of spinning through spinneret, at hot path abjection solvent N, N dimethyl acetylamide and hydrogen chloride, obtain as-spun fibre；As-spun fibre stretches through solvent, washing, removes the hydrogen chloride in as-spun fibre and solvent further, is then dried, xeothermic stretching, and cooling oils and obtains finished fiber.Owing to there is no salt in poly (m-phenylene isophthalmide) spinning dope, the most whole fiber manufacture process is all deionized water and solvent, do not use salt, the meta-aramid fibers product ion content that gained is finally prepared is extremely low, fiber ash is extremely low, and simplify solvent recovery step, save the substantial amounts of energy. |
| priorityDate | 2013-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.