Patent Number: 062654667
Section: claims

1. A composite for providing electromagnetic (EM) shielding, consisting essentially of: a polymeric material; and  an effective amount of oriented nanotubes for EM shielding, the nanotubes being oriented when a shearing force is applied to the composite.  providing a polymer with an amount of nanotubes;  imparting a shearing force to the polymer and nanotubes to orient the nanotubes.  applying an elongation force to the composite.  applying an extrusion force to the composite.  providing a composite having from about 0.001 to about 15 weight percent of nanotubes.  providing a composite having from about 0.01 to about 5 weight percent of nanotubes.  providing a composite having from about 0.1 to about 1.5 weight percent of nanotubes.  applying an elongation force to the composite.  applying an extrusion force to the composite.  applying an injection force to the composite.  applying the composite to an outer surface of a component. 2. The composite of claim 1, wherein the amount of nanotubes is from about 0.001 to about 15 weight percent of the composite. 3. The composite of claim 1, wherein the amount of nanotubes is from about 0.01 to about 5 weight percent of the composite. 4. The composite of claim 1, wherein the amount of nanotubes is from about 0.1 to about 1.5 weight percent of the composite. 5. The composite of claim 1, wherein the shearing force is applied by elongation. 6. The composite of claim 1, wherein the shearing force is applied by extrusion. 7. The composite of claim 1, wherein the shearing force is applied by injection. 8. The composite of claim 1, wherein the polymeric material is a thermoplastic polymer. 9. The composite of claim 1, wherein the polymeric material is a thermoset polymer. 10. The composition of claim 1, wherein the polymeric material is selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, styrenic, polyurethane, polyimide, polycarbonate, and polyethylene terephthalate. 11. The composition of claim 1, wherein the composite has a thickness of less than 1 mm. 12. The composite of claim 1, wherein the composite comprises an outer surface of an object. 13. The composite of claim 1, wherein the nanotubes are distributed homogeneously within said polymer. 14. The composite of claim 1, wherein the nanotubes have a length-to-diameter aspect ratio of at least 100:1. 15. A method for making a electromagnetic (EM) shielding comprising: 16. The method of claim 15, wherein the step of imparting a shearing force to the polymer and nanotubes to orient the nanotubes comprises: 17. The method of claim 15, wherein the step of imparting a shearing force to the polymer and nanotubes to orient the nanotubes comprises: 18. The method of claim 15, wherein the step providing a polymer with an amount of nanotubes comprises: 19. The method of claim 15, wherein the step providing a polymer with an amount of nanotubes comprises: 20. The method of claim 15, wherein the step providing a polymer with an amount of nanotubes comprises: 21. The method of claim 15, wherein the polymeric material is a thermoplastic polymer. 22. The method of claim 15, wherein the polymeric material is a thermoset polymer. 23. The method of claim 15, wherein the polymeric material is selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, styrenic, polyurethane, polyimide, polycarbonate, and polyethylene terephthalate. 24. The method of claim 15, wherein the step of imparting a shearing force to the polymer and nanotubes to orient the nanotubes comprises: 25. The method of claim 15, wherein the step of imparting a shearing force to the polymer and nanotubes to orient the nanotubes comprises: 26. The method of claim 15, wherein the step of imparting a shearing force to the polymer and nanotubes to orient the nanotubes comprises: 27. The method of claim 15, further comprising the step of: