E.i. Dupont De Nemours and Company

Robert Mamoru Linek

Jing Chung Chang

Nirmal K Agarwal

Ramunas L Valteris

Richard Lee Dommel

Alfred Harold Thompson

Improved staple fibers and processes for producing them are provided. The processes are particularly useful for forming staple fibers from poly(trimethylene terephthalate), especially carpet staple fibers. The processes include prewetting undrawn yarns and drawing the fibers under wet and warm conditions, thermo-fixing the texture, and drying at relatively low temperatures. Fibers produced according to the processes disclosed herein have improved properties and reduced brittleness as compared to fibers prepared using conventional processes.

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Seaford, DE, United States of America

Robert Mamoru Linek