Polyamide hollow filaments

Details Polyamide hollow filaments Polyamide hollow filaments

1994-03-11

1994-12-06

Foelak, Morton

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

26417714, 264211, 521 94, 521134, D02G 300, D01D 5253, D01F 108

Patent

active

053709357

ABSTRACT:
An improved process for preparing polyamide hollow filaments wherein an N,N'-dialkyl polycarbonamide is melt blended with the molten fiber-forming polyamide prior to spinning into filaments. The polycarbonamide substantially decreases the collapsing of the voids which naturally occurs immediately .after spinning and before the filaments are completely cool.

REFERENCES:
patent: 3216186 (1965-11-01), Opfell
patent: 3900676 (1975-08-01), Alderson
patent: 4218509 (1990-09-01), Edgar et al.
patent: 4722795 (1988-02-01), Gohl
patent: 4869059 (1989-09-01), Austin
patent: 5318738 (1994-06-01), Agarwal et al.

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