Biconstituent acrylic fibers by melt spinning

Details Biconstituent acrylic fibers by melt spinning Biconstituent acrylic fibers by melt spinning

1980-08-18

1981-07-14

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

With crimping or crinkling of strands of filaments

264171, 2642103, 2642106, 428373, D01D 522

Patent

active

042786347

ABSTRACT:
A mixture of (1) a single phase melt of water and a first acrylonitrile polymer containing at least 85% acrylonitrile and (2) a pure melt of a second acrylonitrile polymer containing from about 60-72% acrylonitrile is extruded through the orifices of a spinneret directly into a steam-pressurized solidification zone to provide a biconstituent fiber which is stretched while within the solidification zone.

REFERENCES:
patent: 3801429 (1974-04-01), Schrenk et al.
patent: 4062857 (1977-12-01), Kobayashi et al.
patent: 4161500 (1979-07-01), Schleinitz et al.
patent: 4219523 (1980-08-01), Porosoff

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