Non-Fluorinated Hydrophobic Coating
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Sep 25, 2024
filing date -
Sep 25, 2024
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Abstract
An optical article comprises a coating system which provides antireflective and hydrophobic properties to the optical article. The coating system includes a hard coating on the lens substrate and alternating layers of low refractive index metal oxides and high refractive index metal oxides or alternately, mid-refractive index metal oxides and high refractive index metal oxides are deposited on the hard coating as an antireflective coating layer. A non-fluorinated hydrophobic coating compositions is deposited on the antireflective coating layer to reduce the surface free energy of the antireflective surface of the optical article and improve the overall cleanability of the lens surface by making the lens surface hydrophobic.
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