Patent ID: 7579397

Claim:
A nanocomposite material adapted for electrical insulation comprising a polymer having compounded therein a substantially homogeneously distributed functionalized dielectric nanoparticle filler, wherein the polymer comprises at least one of a rubber, a thermoplastic polymer, or a thermoplastic elastomer, wherein the polymer comprises at least one of ethylene propylene diene monomer (EPDM) rubber, ethylene propylene rubber (EPR), polyethylene, a co-polymer of ethylene with at least one C 3 to C 20 alpha-olefin, or a co-polymer of ethylene with at least one C 3 to C 20 polyene, and wherein the nanoparticle filler is at least one of a metal boride, a metal nitride, carbon nano-fiber whiskers, ceramic nano-fiber whiskers or mixtures thereof.