Gas-containing surface cover, arrangement, and use
AssigneeBaden-Württemberg Stiftung gGmbH
InventorThomas Schimmel
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Abstract
An aspect of the invention relates to a surface cover for a body which can be brought into contact with a liquid, comprising: a layer which at least partly contains gas and which is designed and arranged such that at least some sections of a layer face facing the liquid contacts the liquid; a gas-permeable layer which is arranged on the gas-containing layer on a face that faces the body and is opposite the face facing the liquid or which is integrally formed with the gas-containing layer; and a gas-supplying device which is connected to the gas-permeable layer such that gas can flow from the gas-supplying device to the gas-containing layer through the gas-permeable layer. The invention also relates to an arrangement and a use.
Claims28
A method for protecting a body that is placed in contact with a liquid, said method comprising arranging a gas-retaining layer on at least a portion of a body that can be immersed in a liquid or wetted by a liquid and which is in contact by way of a liquid-facing side with a liquid when the body is immersed in/wetted by the liquid, wherein the gas-retaining layer has on the liquid-facing side recesses and/or protruding elements whose surfaces are hydrophobic at least regionally, and a gas layer which is retained in the immersed/wetted region of the gas-retaining layer separates the liquid and the immersed/wetted region of the body from one another at least regionally, wherein the gas-retaining layer is divided into a multiplicity of sub-regions by fluid-impermeable partitions.
A method for protecting a body that is placed in contact with a liquid, said method comprising:
- providing a gas-retaining layer having a liquid-facing side and protruding elements on the liquid-facing side, the protruding elements having a central surface region which is hydrophilic and which is surrounded by a hydrophobic surface region of the protruding elements;
- and
- arranging the gas-retaining layer on at least a portion of a body that can be immersed in a liquid or wetted by a liquid and which is in contact by way of the liquid-facing side with a liquid when the body is immersed in/wetted by the liquid,
- wherein the gas-retaining layer has optionally recesses whose surfaces are hydrophobic at least regionally, and a gas layer which is retained in the immersed/wetted region of the gas-retaining layer separates the liquid and the immersed/wetted region of the body from one another at least regionally, wherein the protruding elements have a central surface region which is hydrophilic and which is surrounded by a hydrophobic surface region of the protruding elements.
A method for protecting a body that is placed in contact with a liquid, said method comprising arranging a gas-retaining layer on at least a portion of a body that can be immersed in a liquid or wetted by a liquid and which is in contact by way of a liquid-facing side with a liquid when the body is immersed in/wetted by the liquid,
- wherein the gas-retaining layer has on the liquid-facing side recesses and/or protruding elements whose surfaces are hydrophobic at least regionally, and a gas layer which is retained in the immersed/wetted region of the gas-retaining layer separates the liquid and the immersed/wetted region of the body from one another at least regionally,
- wherein the gas-retaining layer is charged with gas from the liquid-facing side of the gas-retaining layer.
Dependencies are inferred from the claim text.