A process for making a synthetic melt spun polyamide filament in a solid phase polycondensation apparatus is disclosed.
The laminate has a nanofiber layer and a base layer, and the nanofiber layer is composed of a polyamide filament made of a polyamide (a) and having an average fiber diameter of 10-1000 nm.
The present invention is particularly useful for production of a wholly aromatic polyamide filament covering an optic fiber in manufacturing an optic cable.
Accordingly, the wholly aromatic polyamide filament produced exhibits narrow PDI and increased ACS, so as to considerably improve strength and modulus thereof.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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