Tuesday, October 23, 2007

US Patent 7285591 - Dispersion of nanotubes in polymer using liquid


This patent from the University of Pennsylvania is based on the use of a liquid to prevent agglomeration when dispersing carbon nanotubes in polymer composites. Claim 1 reads:

1. A process, comprising: providing a nanotube dispersion comprising a plurality of nanotubes and a liquid; contacting said nanotube dispersion with a polymer melt; mixing said nanotube dispersion with said polymer melt to provide a nanotube composite melt; and removing vaporized liquid from said nanotube composite melt.

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