Optically transparent, superhydrophobic, biocompatible thin film coatings and methods for producing same
First Claim
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1. A coating composition comprising:
- a solvent, in an amount of from 98.5 to 99.3 percent by weight based on the total weight of the coating composition;
a straight-chain fatty acid, in an amount of from 0.1 to 1 percent by weight based on the total weight of the coating composition;
wherein said composition comprises at least one epoxy resin and at least one cyanoacrylate, in an amount of from 0.1 to 0.9 percent by weight based on the total weight of the coating composition; and
wherein when applied to a substrate the coating composition provides a surface exhibiting a contact angle of at least 100 degrees with a drop of water, andwherein when applied to the substrate the coating is optically transparent.
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Abstract
An optically transparent, hydrophobic coating, exhibiting an average contact angle of at least 100 degrees with a drop of water. The coating can be produced using low-cost, environmentally friendly components. Methods of preparing and using the optically transparent, hydrophobic coating.
39 Citations
24 Claims
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1. A coating composition comprising:
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a solvent, in an amount of from 98.5 to 99.3 percent by weight based on the total weight of the coating composition; a straight-chain fatty acid, in an amount of from 0.1 to 1 percent by weight based on the total weight of the coating composition; wherein said composition comprises at least one epoxy resin and at least one cyanoacrylate, in an amount of from 0.1 to 0.9 percent by weight based on the total weight of the coating composition; and wherein when applied to a substrate the coating composition provides a surface exhibiting a contact angle of at least 100 degrees with a drop of water, and wherein when applied to the substrate the coating is optically transparent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for providing a surface with a contact angle of at least 100 degrees with respect to a drop of water, the method comprising applying a composition to the surface, the composition comprising
a solvent, in an amount of from 98.5 to 99.3 percent by weight based on the total weight of the coating composition; -
a straight-chain, unsubstituted fatty acid, in an amount of from 0.1 to 1 percent by weight based on the total weight of the coating composition; wherein said composition comprises at least one epoxy resin and at least one cyanoacrylate, in an amount of from 0.1 to 0.9 percent by weight based on the total weight of the coating composition; and wherein when applied to the surface the composition is optically transparent. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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- 17. A method for preparing a coating composition, the method comprising mixing a solvent, a straight-chain, unsubstituted fatty acid, wherein said composition comprises at least one epoxy resin and at least one cyanoacrylate, to form the coating composition, wherein the solvent is present in an amount of from 98.5 to 99.3 percent by weight based on the total weight of the coating composition, wherein the fatty acid is present in an amount of from 0.1 to 1 percent by weight based on the total weight of the coating composition, wherein the epoxy resin and the cyanoacrylate is present in an amount of from 0.1 to 0.9 percent by weight based on the total weight of the coating composition, and wherein when applied to a substrate, the coating composition provides a surface exhibiting a contact angle of at least 100 degrees with a drop of water, wherein when applied to the substrate the coating composition is optically transparent.
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