http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-571007-B
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
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^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate | 2004-01-11^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3136dbc2dc3de33a453df57d4adf5496 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8e607e5f412f40d39b7f826220c5ce0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fee5ed9d1fde34475c76f9c466da9a13 |
publicationDate | 2004-01-11^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | TW-571007-B |
titleOfInvention | Meta-type wholly aromatic polyamide filaments and process for producing same |
abstract | Meta-type whole aromatic polyamide filaments having high uniformity in quality and a high density is produced by dissolving a meta-type wholly aromatic polyamide having, as principal repeating units, m-phenylenediamineisophthalamide units in an amide compound solvent to prepare a polymer solution; subjecting the polymer solution to a wet-spinning procedure in which the polymer solution is extruded through spinning orifices of a spinneret into a coagulation bath comprising an amide compound-containing solvent and water and substantially no salts to form filamentary streams of the polymer solution, and the extruded filamentary polymer solution streams is coagulated in the coagulation bath; subjecting the resultant coagulated porous undrawn filaments to a drawing procedure in which the coagulated porous undrawn filaments are drawn in a plasticizing drawing bath comprising an aqueous solution of an amide compound solvent; washing the drawn filaments with water; and heat-treating the water-washed filaments, for example, by further drawing the filaments at a draw ratio of 0.7 to 4.0 while the filaments are heated at 250 to 400 DEG C. |
isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-I720200-B |
priorityDate | 2000-02-16^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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