THREADS MADE OF COMPLETE AROMATIC POLYIMIDE AND A METHOD OF THEIR PRODUCING

THREADS MADE OF COMPLETE AROMATIC POLYIMIDE AND A METHOD OF THEIR PRODUCING

PCT No. PCT/RU94/00266 Sec. 371 Date Jul. 9, 1996 Sec. 102(e) Date Jul. 9, 1996 PCT Filed Nov. 30, 1994 PCT Pub. No. WO96/04414 PCT Pub. Date Feb. 15, 1996A process for the production of polyimide fibers includes having the fiber spun from a fully aromatic polyamide acid solution in an aprotic amide...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: OPRITS ZINAIDA G, SHCHETININ ALEKSANDR M, ANDRIASHIN ALEKSANDR I, MUSIN RUSLAN R, MUSINA TAMARA K
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
NATURAL OR ARTIFICIAL THREADS OR FIBRES
SPINNING
TEXTILES
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PCT No. PCT/RU94/00266 Sec. 371 Date Jul. 9, 1996 Sec. 102(e) Date Jul. 9, 1996 PCT Filed Nov. 30, 1994 PCT Pub. No. WO96/04414 PCT Pub. Date Feb. 15, 1996A process for the production of polyimide fibers includes having the fiber spun from a fully aromatic polyamide acid solution in an aprotic amide solvent in an aqueous-organic bath and subjected to plasticization drafting. It is washed until a 2-4 wt. % content of the organic solvent per fiber is attained and treated with organic or inorganic acids until a 0.5-1.0 wt. % content thereof per fiber is attained. Thereafter, fibers are dried and heat-treated.