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SUPER-HYDROPHOBIC WATER REPELLANT POWDER

United States Patent Application

20080286556
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A composition of matter is a plurality of solid particles of at least 100 nm to about 10 .mu.m in size having a plurality of nanopores where at least some of the nanopores provide flow through porosity, and the surface of the particles displays a plurality of spaced apart nanostructured features with a contiguous material protruding at the surface and optionally at least one interpenetrating recessing contiguous material. The particles are superhydrophobic when the protruding material is hydrophobic or a hydrophobic coating conforms to the surface of the particle. Articles with superhydrophobic surfaces can be formed by the coating of the particles on a solid substrate.
D'urso, Brian R. (Clinton, TN), Simpson, John T. (Clinton, TN)
11/ 749,852
May 17, 2007
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0001] The United States Government has rights in this invention pursuant to Contract No. DE-AC05-00OR22725 between the United States Department of Energy and UT-Battelle, LLC.