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US 8,708,458 B2Granted
Superoleophobic glass devices and their methods
AssigneeXerox Corporation
InventorsHong Zhao, Kock-Yee Law, Yuanjia Zhang
Life of this patent
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Abstract
Various embodiments provide materials and methods for a superoleophobic device, which can include a conformal oleophobic coating disposed on glass pillars and/or stripe-shaped glass structures on a glass substrate to provide the device with a textured superoleophobic surface.
Claims20
A superoleophobic device comprising:
- a glass substrate;
- a plurality of glass structures disposed on a top surface of the glass substrate to form a plurality of grooves on the top surface;
- a patterned layer disposed on each glass structure of the plurality of glass structures, such that the patterned layer overhangs the each glass structure;
- and
- a conformal oleophobic coating disposed on portions of the glass substrate, the patterned layer, and the plurality of glass structures to form a textured superoleophobic surface.
2 more elements
A method of forming a superoleophobic device comprising:
- providing a glass substrate;
- forming a plurality of patterned layers on the glass substrate;
- etching the glass substrate, using the plurality of patterned layers as an etch mask, to form a plurality of etched glass structures;
- isotropically etching the glass substrate comprising the plurality of etched glass structures, using the patterned layer as an etch mask, to form a plurality of glass pillars, wherein each patterned layer of the plurality of patterned layers overhangs a corresponding glass pillar of the plurality of glass pillars;
- and
- conformally forming an oleophobic coating on portions of the glass substrate, the plurality of patterned layers, and the plurality of glass structures to form a textured superoleophobic surface.
3 more elements
A method of forming a superoleophobic device comprising:
- providing a glass substrate;
- forming a plurality of patterned layers on the glass substrate;
- anisotropically etching the glass substrate, using the plurality of patterned layers as an etch mask, to form a plurality of anisotropically etched glass structures;
- isotropically etching the glass substrate comprising the plurality of anisotropically etched glass structures, using the patterned layer as an etch mask, to form a plurality of stripe-shaped glass structures, wherein each patterned layer of the plurality of patterned layers overhangs a corresponding stripe-shaped glass structure of the plurality of stripe-shaped glass structures;
- and
- conformally forming an oleophobic coating on portions of the glass substrate, the plurality of patterned layers, and the plurality of stripe-shaped glass structures to form a textured superoleophobic surface.
3 more elements
Dependencies are inferred from the claim text.