Transparent hydrophobic mixed oxide coatings and methods
AssigneeGKN Aerospace Transparency Systems, Inc.
InventorsMarlowe Moncur, Christopher Rankin
Life of this patent
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Abstract
A hydrophobic coating and a method for applying such a coating to a surface of a substrate. The method includes applying a coating composition to the surface and heating the coated surface at a cure temperature from about 300° C. to about 600° C. for a time from about 2 hours to about 48 hours. The coating composition is applied to the surface by an application method selected from the group consisting of flowing, dipping, and spraying. The coating composition comprises a yttrium compound, an additive selected from the group consisting of a cerium compound and a dispersion of yttrium oxide nanoparticles, a water-soluble polymer, and a solvent solution of de-ionized water and a water-soluble alcohol.
Claims18
A method of applying a hydrophobic coating to a surface of a substrate, the method comprising the following steps:
- applying a coating composition to the surface by an application method selected from the group consisting of flowing, dipping, and spraying;
- and
- heating the coated surface at a cure temperature from about 300° C. to about 500° C. for a time from about 2 hours to about 5 hours;
- and
- wherein the coating composition comprises:
- a yttrium compound,
- a dispersion of yttrium oxide nanoparticles,
- a water-soluble polymer, and
- a solvent solution of de-ionized water and a water-soluble alcohol.
Dependencies are inferred from the claim text.