http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01118613-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-74 |
| filingDate | 1987-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_205b121f36f7ae0d5b0508ae0db918a2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c1626391a543d1ee2eb30bfa7b50a73 |
| publicationDate | 1989-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01118613-A |
| titleOfInvention | Production of high-modulus fiber |
| abstract | PURPOSE: To obtain a high-modulus fiber of poly-p-phenylene pyromellitimide from a forming dope of a polyimide precursor composed of a specific recurring unit, by subjecting the dope to extrusion, coagulation, drawing, chemical cyclization and heat-treatment under specific conditions. n CONSTITUTION: A forming dope containing a polyimide precursor composed of the recurring unit of formula I is extruded into an inert atmosphere, passed through a non-aqueous coagulation bath containing an aliphatic alcohol having excellent desolvation effect and drawn in a drawing bath composed of a non- aqueous solvent. The drawn fiber is chemically cyclized and heat-treated under constant length or under tension to obtain the objective high-modulus fiber having an initial modulus of ≥800g/d. n COPYRIGHT: (C)1989,JPO&Japio |
| priorityDate | 1987-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 16.