Coatings
AssigneeMassachusetts Institute of Technology
InventorsNuerxiati Nueraji, Albert J. Swiston, Michael F. Rubner, Robert E. Cohen
Life of this patent
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Abstract
A hydrophilic coating can be applied to virtually any surface to produce a long-lasting, durable antifog effect. The coating includes a molecular-level blend of hydrophilic polymers. The coating can be assembled using a layer-by-layer assembly process.
Claims32
An article comprising a surface coated with an antifog coating, the coating comprising:
- a first hydrophilic polymer;
- and
- a second hydrophilic polymer;
- wherein the first and second hydrophilic polymers are molecularly blended.
An article comprising a surface coated with an antifog coating, the coating comprising a sequence of layers including a plurality of first layers including a first hydrophilic polymer alternating with a plurality of layers including a second hydrophilic polymer, wherein the first hydrophilic polymer and the second hydrophilic polymer are intermingled.
A method of coating a surface of an article with an antifog coating, comprising depositing on the surface a composition including molecularly blended first and second hydrophilic polymers.
A method of coating a surface of an article with an antifog coating, comprising alternately contacting the surface with a first aqueous solution including a first hydrophilic polymer and contacting the surface with a second aqueous solution including a second hydrophilic polymer.
Dependencies are inferred from the claim text.