Wednesday, September 28, 2011

US Patent 8025971 - CNT pressure sensitive adhesive

This patent from Nitto Denko Corporation teaches improving the mechanical properties of pressure sensitive adhesives by using carbon nanotubes. Claim 1 reads:

1. A fibrous columnar structure aggregate comprising fibrous columnar structures having a plurality of diameters, wherein:

the fibrous columnar structures comprise carbon nanotubes;

the fibrous columnar structures have a plurality of diameters, and a length of 500 μm or more;

wherein the mode of a diameter distribution of the fibrous columnar structures is 15 nm or less, and the relative frequency of the mode of the diameter distribution is 30% or more.