Process of making hollow polyamide filaments

Details Process of making hollow polyamide filaments Process of making hollow polyamide filaments

1993-04-13

1994-06-07

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264211, D01D 5253, D01F 108

Patent

active

053187385

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 (1980-09-01), Edgar et al.
Translation of German Democratic Rep. 154, 784 (Published Apr. 12, 1982).
Translation of German Democratic Rep. 158, 334 (Published Jan. 12, 1983).

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