US Patent 7745528 - Graphene-rubber nanocomposites

http://www.freepatentsonline.com/7745528.html

This patent from Princeton University teaches a method to incorporate graphene into a polymer matrix to improve the strength and electrical conductivity of seals an packaging materials. Claim 1 reads:

1. A polymer composition, comprising:

a polymer matrix comprising an elastomer; and

a functional graphene which displays no signature of graphite and/or graphite oxide, as determined by X-ray diffraction.