Liquid-repellent coatings
AssigneeThe Regents of the University of California
InventorsLance Brockway, Hayden Kingsley Taylor
Life of this patent
Estimating the term…
Abstract
The invention relates generally to liquid-repellent coatings, and in particular, to porous liquid-repellent coatings, a method of preparing the porous liquid-repellent coatings, and a method of characterizing a porous surface for the liquid-repellent coatings. The invention further relates to a porous liquid-repellent coating comprising a porous layer of a transition metal oxide and/or hydroxide and a layer of a liquid-repellent compound deposited onto the porous layer of the transition metal oxide and/or hydroxide, wherein the porous layer of the transition metal oxide and/or hydroxide is comprised of a plurality of surface pores of varying angles with an average angle that is re-entrant.
Claims7
A liquid-repellent surface comprising:
- a metallic substrate and a porous liquid repellent coating applied thereon;
- wherein the porous liquid repellent coating comprises a porous layer of a transition metal oxide, wherein the transition metal oxide comprises one or more of manganese oxide, nickel oxide, nickel hydroxide, iron oxide, or copper oxide, or copper hydroxide;
- and a layer of a liquid-repellent compound deposited onto the porous layer of the transition metal oxide, wherein the porous layer of the transition metal oxide comprises a plurality of surface pores of varying angles with an average angle that is reentrant, and wherein the metallic substrate contributes metal ions to form a mixed transition metal oxide with the porous layer.
Dependencies are inferred from the claim text.