The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 2013
Filed:
Dec. 19, 2006
Mool C. Gupta, Yorktown, VA (US);
Yonglai Yang, Newport News, VA (US);
Kenneth L. Dudley, Newport News, VA (US);
Roland W. Lawrence, Seaford, VA (US);
Mool C. Gupta, Yorktown, VA (US);
Yonglai Yang, Newport News, VA (US);
Kenneth L. Dudley, Newport News, VA (US);
Roland W. Lawrence, Seaford, VA (US);
University of Virginia Patent Foundation, Charlottesville, VA (US);
Abstract
An electromagnetic interference (EMI) shielding material includes a matrix of a dielectric or partially conducting polymer, such as foamed polystyrene, with carbon nanotubes or other nanostructures dispersed therein in sufficient concentration to make the material electrically conducting. The composite is formed by dispersing the nanotube material in a solvent in which the dielectric or partially conducting polymer is soluble and mixing the resulting suspension with the dielectric or partially conducting polymer. A foaming agent can be added to produce a lightweight foamed material. An organometallic compound can be added to enhance the conductivity further by decomposition into a metal phase.