Inventors:
Robert Anthony Breznak - Berkeley Heights NJ
Joseph Andrew Foldhazy - Avenel NJ
Robert Allen Ritchie - Kenvil NJ
Herman Leslie LaNieve - Warren NJ
Wolfgang Alfred Piesczek - Bobingen, DE
Assignee:
Hoechst Celanese Corp - Somerville NJ
International Classification:
D01F 109
D01F 814
Abstract:
An antistatic bicomponent fiber includes a nonconductive first component made of a first polymer and a conductive second component made of a second polymer containing a conductive material, where the second polymer has a lower melting point than the first polymer. The bicomponent fiber is made by co-extruding the two polymers at a temperature above their melting points, stretching the extruded fiber to increase the tensile strength, and heat treating the fiber at a temperature between the melting point of the first polymer and the melting point of the second polymer to improve the conductivity of the conductive second component. The bicomponent fiber is preferably a sheath/core fiber.