US 3,958,066 A · Conductive synthetic fibers

Abstract

Thermoplastic synthetic polymer fibers having powder of metal attached to the surface of the fibers are subjected to a treatment for increasing the oxidation number of said metal from zero to a plus value, that is, oxidation in a broad sense. The resulting conductive synthetic fibers support a layer of a compound of the metal, i.e. an oxidized product of the metal in a broad sense, firmly and undetchably thereon, and have as low an electric resistivity as 10.sup.5 .OMEGA./cm or less. The conductive fibers can be blended to ordinary synthetic fibers to improve their antistatic property, or can be substituted for expensive metal fibers. The thermoplastic synthetic polymer fibers are sheath-core fibers wherein the sheath has a lower melting point than the core.

Claims11

Dependent claims

Conductive synthetic fibers having an electric resistivity of 10.sup.5 .OMEGA./cm or less, and consisting of fibers of thermoplastic synthetic polymer and, adhered directly to the surface thereof, a substantially continuous layer consisting of oxidized metal particles, wherein said metal particles are oxidized in the broad sense, produced by a process comprising

1. heating sheath-core synthetic fibers wherein the sheath has a lower melting point than the core to soften the sheath,
2. depositing metal powder upon the heat-softened sheath,
3. cooling the sheath to bind the metal particles which were deposited thereon when it was in a heat-softened state, and
4. subjecting the atmosphere-exposed bound metal particles to an oxidation treatment in a broad sense.

1 more element

Dependencies are inferred from the claim text.

Conductive synthetic fibers

Life of this patent

Conductive synthetic fibers

Life of this patent

Abstract

Claims11