E.i. Dupont De Nemours and Company

James W Tolliver

James Victor Hartzog

Harvey G Anderson

Harold L Manning, Jr

An apparatus for radially quenching melt spun filaments features a quenching chamber having a foraminous distribution cylinder between the filaments and the gas supply chamber with areas of porosity that increases, from a first low value at a location immediately below the spinneret, through a larger value at lower location, and then decreases toward the exit of the quench chamber.

Apparatus for quenching melt spun filaments

Fine denier polyester fibers are obtainable from polymer of low molecular weight to have improved uniformity and excellent mechanical properties by a high throughput process.

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Kinston, NC, United States of America

James W Tolliver