Patent ID: 8101680
Filing Date: 2012-01-24
Classification: C08J,C08K

Abstract:
1. A method for producing a dispersion containing a polymer and nanoparticles, comprising: providing a solution comprising a metal precursor and a solvent, wherein the metal precursor is not in the form of nanoparticles; combining the solution with a polymer to form a mixture; and extruding the mixture to form the dispersion; wherein the extrusion step occurs at a melt temperature above the degradation temperature of the metal precursor and wherein the mixture has a residence time of at least 35 seconds; wherein the solution comprises from about 1 to about 30 wt % of the total weight of the polymer and the solution; wherein the dispersion contains metal nanoparticles, metal oxide nanoparticles, or a combination thereof; wherein the nanoparticles have an interparticle distance of from 0.1 nm to about 1500 nm in the dispersion; and wherein the nanoparticles comprise from about 0.125 to about 5 wt % of the total weight of the nanoparticles and the polymer.