Process for preparing aromatic polyamide fibre and film

Aromatic polyamide fibre and film is made by forming a prepolymer by condensation while dissolved in an amide solvent containing inorganic salt solubiliser, extruding the resultant prepolymer dope into a precipitating solvent containing a polymerisation accelerator and stretching the extruded produc...

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Bibliographische Detailangaben
Hauptverfasser: PARK, SANG BONG, PARK, JONG TAE, KIM, SI MIN, KIM, SANG HO, YOO, SEOG CHUL, RHIM, HOO SAN, KIM, DU HEYN, KIM, HAK MOOK, HAN, IHN SIK, PARK, HO JIN
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:Aromatic polyamide fibre and film is made by forming a prepolymer by condensation while dissolved in an amide solvent containing inorganic salt solubiliser, extruding the resultant prepolymer dope into a precipitating solvent containing a polymerisation accelerator and stretching the extruded product while completing the polymerisation. The resultant fibre or film does not include crystal defect layers and has good strength and resistance to friction.