| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_490916c16cf8aee21e6461d589f8408c |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-605
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-805 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C48-05 |
| filingDate |
2011-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b20e7c7d4ba4eeb3113746e33955e413 |
| publicationDate |
2012-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2012168983-A1 |
| titleOfInvention |
Method for Preparing Meta-Aramid Fibers |
| abstract |
A method of preparing meta-aramid fibers includes the operations of polymerization, neutralization and spinning using m-phenylenediamine and isophthaloyl chloride as raw materials, wherein the neutralizing agent is added in an amount that is sufficient only for neutralizing a part of hydrogen chloride, so that the resultant spin dope of polyisophthaloyl metaphenylene diamine contains salts produced by the neutralization reaction and a part of unneutralized hydrogen chloride. The method of the invention has a short production line with reduced amount of the neutralizing agent, therefore both the costs of raw materials and the production energy consumption are saved. The fibers prepared according to the method of the invention have reduced gray scale to improve the electrical insulation properties of the fibers. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20160022777-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2016028078-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102170294-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10011951-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8444813-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2017073896-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012227919-A1 |
| priorityDate |
2010-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |