Patent ID: 6242094
Filing Date: 2001-06-05
Classification: D01F,Y10T

Abstract:
A polymeric antistatic bicomponent sheath-core fiber which comprises about 50% to about 85%, by weight of the fiber, of a non-conductive core of polyethylene terephthalate and about 15% to about 50%, by weight of the fiber, of a conductive sheath of a second polymer containing about 5% to about 15% by weight of electrically conductive particles and having a resistivity of no more than about 10.sup.8 ohm cm, said polyethylene terephthalate having a melting point at least 20.degree. C. higher than said second polymer, and said second polymer having a melting point of at least 180.degree. C. and being selected from the group consisting of poly(butylene terephthalate), polyethylene terephthalate/adipate copolymer, polyethylene terephthalate/isophthalate copolymer, nylon 11 and nylon 12, and said electrically conductive particles being carbon and/or metal particles.