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US 12,735,578 B2Granted
Ice-shedding and smudge-repellant coating
AssigneeQueen's University at Kingston
InventorsGuojun Liu, Alexander Newell Harper
Life of this patent
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Abstract
A coating that is able to shed accumulated material (such as ice) that includes a crosslinkable copolymer with hydrogen bonding moieties and liquid-like side chains, and an oil (or other non-aqueous liquid) that is compatible with the side-chains and that resides in the crosslinked coating and on the surface of the coating together with the side-chains that are on the external surface. Methods may use the coating for de-icing, shedding of marine organisms, and smudge-repellency.
Claims16
A method for shedding accumulated material, comprising:
- applying a coating precursor to a substrate to form a crosslinked coating, wherein the coating precursor comprises a crosslinkable copolymer comprising hydrogen bonding moieties and liquid-like side chains that are compatible (miscible) with a selected non-aqueous liquid, wherein the selected non-aqueous liquid is ethylene glycol and the liquid-like side chains are poly(ethylene glycol);
- and
- adding 0.2-30 vol % of the selected non-aqueous liquid either to the coating precursor or to the crosslinked coating,
- wherein accumulated material on the coating sheds.
1 more element
Dependencies are inferred from the claim text.