Monday, March 28, 2011

US Patent 7910650 - Conductive thermosets with dispersed CNTs

Thermosets are a form of polymer which have high strength but can be difficult to mix with additives. This patent is from Hyperion Catalysis and teaches an extrusion method which may facilitate dispersion of nanotubes in thermosets to form high strength conductive polymers. Claim 1 reads:

1. A method of preparing a conductive thermoset precursor comprising:

providing a first thermoset precursor having a viscosity greater than 15 poise, and

dispersing carbon nanotubes in said first thermoset precursor by extrusion to form a conductive thermoset precursor,

wherein said carbon nanotubes have a diameter less than 1 micron.