Process for processing polymer mixtures to filaments

Details Process for processing polymer mixtures to filaments Process for processing polymer mixtures to filaments

1998-08-05

1999-10-05

Acquah, Samuel A.

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

525 71, 525 8, 525 10, 525165, 525242, 525244, 5253297, 5253303, 5253333, 525437, 525445, 2641761, 26417713, 26417717, 2642108, 428221, D02G 300, C08F 2000

Patent

active

059621311

ABSTRACT:
Process for the production of preoriented filaments from polyester-based polymer mixtures by spinning the polymer mixtures with a draw-off speed v of at least 2500 m/min, a second amorphous, thermoplastically processable copolymer having a glass transition temperature of more than 100.degree. C. being added to the polyester, wherein the ratio of the melt viscosity of the copolymer to the melt viscosity of the polyester is 1:1 to 10:1, in that the amount of copolymer added to the polyester is at least 0.05 wt. %, in that the maximum amount M of the copolymer added to the polyester depends on the draw-off speed v, and in that ##EQU1##

REFERENCES:
patent: 4104261 (1978-08-01), Magosch et al.
patent: 5364669 (1994-11-01), Sumida et al.
patent: 5552478 (1996-09-01), Fisher
patent: 5858507 (1999-01-01), Yoshida et al.

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