Patent ID: 9121307
Filing Date: 2015-09-01
Classification: A61L,B01D,B01L,B05D,B63B,B64D,B65D,C02F,C09D,C10M,D06M,E04B,F01D,F15D,F16L,F28F,G02B,H01L,Y02W,Y10T

Abstract:
1. An article having a repellant surface, the article comprising: a substrate comprising a roughened surface having a predetermined roughness and one or more functional groups chemically attached to the roughened surface; and a lubricating liquid that has a chemical affinity to the substrate, as determined by an equilibrium contact angle of less than 90°, to wet spontaneously the substrate, the lubricating liquid wetting and adhering to the functionalized roughened surface to provided a stabilized liquid at a thickness sufficient to form a liquid overlayer above the functionalized roughened surface, wherein the predetermined roughness and the one or more functional groups are effective to substantially stably immobilize the lubricating liquid in, on and over the functionalized roughened surface, without dewetting from the substrate, to form a repellant surface.