CNS-shielded wires

• US 9,111,658 B2
• Filed: 04/13/2012
• Issued: 08/18/2015
• Est. Priority Date: 04/24/2009
• Status: Active Grant

• Current Assignee: Applied NanoStructured Solutions, LLC (Cabot Corporation)
• Original Assignee: Applied NanoStructured Solutions, LLC (Cabot Corporation)
• Inventors: Shah, Tushar K., Morber, John J.
• Primary Examiner(s): Nguyen, Chau N
• Application Number:
  US13/447,081
• Publication Number:
  US 20120247800A1
• Time in Patent Office: 1,222 Days
• Field of Search: 174/36, 174/102.SC, 174/106.R
• US Class Current: 1/1
• CPC Class Codes: H01B 1/24 the conductive material comprising carbon-silicon compounds, carbon or silicon
• CPC Class Codes: H01B 3/004 with conductive additives or conductive layers
• CPC Class Codes: H05K 9/009 comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked

Abstract

A shielded wire includes a carbon nanostructure (CNS)-shielding layer including a CNS material in a matrix material, the CNS-shielding layer being monolithic and disposed about a dielectric layer and a conducting wire, wherein the dielectric layer is disposed between the CNS-shielding layer and the conducting wire. An extruded thermoplastic jacket includes a CNS material, the extruded thermoplastic jacket being configured to protect at least one wire. A thermoplastic article includes a CNS-infused fiber material and a flexible thermoplastic.

Claims

1. A shielded wire comprising:

a carbon nanostructure (CNS)-shielding layer comprising a CNS material in a matrix material, the CNS-shielding layer being monolithic and disposed about a conducting wire and an optional dielectric layer, wherein when the dielectric layer is present, it is disposed between the CNS-shielding layer and the conducting wire;

wherein the CNS material comprises individual carbon nanotubes, shared-wall carbon nanotubes, branched carbon nanotubes, and crosslinked carbon nanotubes in a random distribution; and

a braided shield comprising a second CNS material;

wherein the second CNS material comprises individual carbon nanotubes, shared-wall carbon nanotubes, branched carbon nanotubes, and crosslinked carbon nanotubes in a random distribution.

2. The shielded wire of claim 1, wherein the braided shield is disposed about the CNS-shielding layer.

3. The shielded wire of claim 1, wherein the braided shield is disposed between the CNS-shielding layer and the dielectric layer.

4. The shielded wire of claim 1, wherein the CNS material comprises a CNS-infused fiber material.

5. The shielded wire of claim 4, wherein the CNS-infused fiber material comprises glass or carbon fiber.

6. The shielded wire of claim 4, wherein the CNS-infused fiber material comprises a chopped fiber.

7. The shielded wire of claim 4, wherein the CNS-infused fiber material comprises a continuous fiber.

8. The shielded wire of claim 1, wherein the matrix material comprises a thermoplastic or thermoset resin.

9. The shielded wire of claim 1, wherein the matrix material comprises a polymer selected from the group consisting of polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), and polyvinyl chloride (PVC).

10. The shielded wire of claim 1, wherein the shielded wire is configured as a coaxial cable.

11. The shielded wire of claim 1, wherein the CNS-shielding layer further comprises a water blocking material.