Article with a Hydrophobic Surface Coated with a Temporary Super-Hydrophobic Film Providing Antirain Functionality and Process for Obtaining Same
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United States of America Patent
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Issued Date -
Dec 22, 2022
app pub date -
Oct 5, 2020
filing date -
Oct 5, 2020
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Abstract
The present invention relates to an article having a surface coated with a nanostructured temporary super-hydrophobic film having a static contact angle with water of at least 140°, preferably exhibiting multiple length scales of roughness and comprising nanoparticles functionalized with a hydrophobic agent, wherein the functionalization of the nanoparticles with the hydrophobic agent has been performed before said nanostructured temporary super-hydrophobic film is coated on said surface. The surface of the article exhibits a static contact angle with water of at least 60° before being coated with the nanostructured temporary super-hydrophobic film. The treatment according to the invention can be used to provide an antirain function to optical articles having a hydrophobic surface.
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