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Superhydrophobic aerogel that does not require per-fluoro compounds or contain any fluorine

United States Patent

May 26, 2015
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Provided are superhydrophobic coatings, devices and articles including superhydrophobic coatings, and methods for preparing the superhydrophobic coatings. The exemplary superhydrophobic device can include a substrate component and one or more superhydrophobic coatings disposed over the substrate component, wherein at least one of the one or more superhydrophobic coatings has a water contact angle of at least about and a contact angle hysteresis of less than about The one or more superhydrophobic coatings can include an ultra high water content acid catalyzed polysilicate gel, the polysilicate gel including a three dimensional network of silica particles having surface functional groups derivatized with a silylating agent and a plurality of pores.
Kissel; David J. (Anoka, MN), Brinker; Charles Jeffrey (Albuquerque, NM)
STC.UNM (Albuquerque, NM)
13/ 121,166
June 30, 2009
GOVERNMENT RIGHTS The present invention was developed under Contract Nos. DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy and FA9550-06-C-0033 awarded by the U.S. Air Force Office of Scientific Research. The U.S. Government has certain rights in this invention.