Patent ID: 9518162
Filing Date: 2016-12-13
CPC Classification: B29B,B29C,B29K,C08J,C08K,H01B,H01G

Claim Text:
1. A process of making a continuous freeform thermoplastic dielectric film for use at high voltage that is evenly loaded with dispersed nanoparticles comprising the steps of: feeding thermoplastic granules into an extruder; injecting a secondary feed comprising a suspension of nanoparticles in a liquid carrier to create a nanocomposite; continuously mixing the secondary feed by an ultrasonicator whilst injecting it into the extruder; and extruding the nanocomposite onto cooled rollers at a preset rate thereby enabling the crystalline structure of the dielectric film to be controlled; wherein the nanoparticles are geometrically controlled to each have no diameter that is greater than the De Broglie wavelength of an electron in the thermoplastic granules.