Coating compositions are provided that eject droplets of condensed fluid from a surface. The coatings include a nanostructured coating layer and in some embodiments, also include a hydrophobic layer deposited thereon. The coating materials eject droplets from the surface in the presence of non-condensing gases such as air and may be deployed under conditions of supersaturation of the condensed fluid to be ejected. A heat exchanger design utilizing the coating is described herein.

The present invention relates to fan cover (6), in particular a fan cover (6) for a cooking appliance (1), obtainable by a process characterised by the following steps, a) providing a fan cover (6) having an inner surface (7a), an outer surface (7b) and at least one opening (8) allowing a fluid to flow through, b) pretreating of at least the inner surface (7a) of the fan cover (6) for providing a surface having a roughness being suitable for applying a non-stick and/or non-wetting coating (12) by mechanical treatment, physical treatment or chemical treatment, in particular by sandblasting and/or laser treatment and/or an enamelling process to form a ground layer (13), c) applying the non-stick and/or non-wetting coating (12) to the inner surface (7a) of the fan cover (6) or the surface (14a) of the ground layer (13), wherein the non-stick and/or non-wetting coating (12) comprises at least one layer (17) that is obtained by a sol-gel process from a first composition comprising a silica sol and a silane. The invention further relates to a cooking appliance (1), in particular a domestic oven comprising such a fan cover (6) and a method for manufacturing such a fan cover (6).

Coating compositions are provided that eject droplets of condensed fluid from a surface. The coatings include a nanostructured coating layer and in some embodiments, also include a hydrophobic layer deposited thereon. The coating materials eject droplets from the surface in the presence of non-condensing gases such as air and may be deployed under conditions of supersaturation of the condensed fluid to be ejected. A heat exchanger design utilizing the coating is described herein.

The present invention relates to component, in particular a top plate (2) for a gas hob (1) and/or a burner cap (6a, 6b) of a gas burner (5a, 5b) for a gas hob (1), having a non-stick and/or non-wetting coating (12) obtainable by a process characterised by the following steps, a) providing a component, in particular a top plate (2) and/or a burner cap (6a, 6b), having an upper surface (7a) and a bottom surface (11b), b) preferably, pretreating of at least the upper surface of the component, in particular the top plate or the burner cap, for providing a surface having a roughness being suitable for applying a non-stick and/or non-wetting coating, by mechanical treatment, physical treatment or chemical treatment, in particular by sand-blasting and/or laser treatment and/or a surface activation treatment, particularly a plasma treatment, and/or an enameling process to form a ground layer (13), thus applying an enamel layer onto the upper surface of the component, in particular the top plate or the burner cap, c) applying the non-stick and/or non-wetting coating (12) to the upper surface (11a) of the component, in particular a top plate (2) and/or a burner cap (6a, 6b), or the surface (14a) of the ground layer (13), wherein the non-stick and/or non-wetting coating (12) comprises at least one layer (17) that is obtained by a sol-gel process from a first composition comprising a silica sol and a silane. The invention further relates to a cooking appliance (1), in particular a gas hob comprising such a component, in particular a top plate (2) and/or a burner cap (6a, 6b), and a method for manufacturing such a component, in particular a top plate (2) and/or a burner cap (6a, 6b).

Assemblies for DNA sequencing are provided comprising: (a) a substrate in the form of a flat plate; (b) a first coating layer applied to at least one surface of the substrate; and (c) a second coating layer applied to at least one surface of the first coating layer. The first coating layer comprises at least one of chromium oxide, tantalum pentoxide, Ta.sub.2O.sub.3 and TaO.sub.2, and the second coating layer comprises a silane compound. Also provided are mold assemblies comprising: (a) a substrate having an interior surface and an exterior surface; and (b) a mold release component comprising: (i) a first coating layer similar to that above, applied to the interior surface of the substrate; and (ii) a second coating layer applied to the first coating layer; wherein the second coating layer comprises an organo-silicon compound comprising at least one of a trihalosilane, a tetrahalosilane, an organosilane, and polymers thereof.

Coating compositions are provided that eject droplets of condensed fluid from a surface. The coatings include a nanostructured coating layer and in some embodiments, also include a hydrophobic layer deposited thereon. The coating materials eject droplets from the surface in the presence of non-condensing gases such as air and may be deployed under conditions of supersaturation of the condensed fluid to be ejected. A heat exchanger design utilizing the coating is described herein.

A corrosion-resistant member (10) provided with: a base material (16) made of aluminum or an aluminum alloy; a diamond-like carbon film (18) formed on a surface of the base material (16) and made of amorphous carbon (a-C) or hydrogenated amorphous carbon (a-C:H); and an epoxy resin-containing coating material (20), which at least fills open pores (24) of the diamond-like carbon film (18).

To provide a fluorinated ether compound capable of forming a water and oil repellent layer with excellent abrasion resistance on a metal surface of a substrate, a composition, and an article provided with a water and oil repellent layer.

The fluorinated ether compound of the present invention is represented by [R.sup.f—(OX).sub.m—O—].sub.j1Y.sup.1—Z.sup.1[-L.sup.1-S—R.sup.11].sub.g11[R.sup.12].sub.g12. R.sup.f is a perfluoroalkyl group, X is a fluoroalkylene group having at least one fluorine atom, m is an integer of at least 2, Y.sup.1 is a single bond or a (j1+1) valent linking group, and Z.sup.1 is a (g11+g12+1) valent linking group, L.sup.1 is a single bond or a divalent linking group, R.sup.11 is a hydrogen atom or a monovalent substituent, R.sup.12 is a hydrogen atom or a monovalent substituent, j1 is an integer of at least 1, g11 is an integer of at least 2, and g12 is an integer of at least 0.

To provide an article with a water and oil repellent layer, which is excellent in friction resistance.

The article with a water and oil repellent layer of the present invention comprises a substrate, a water and oil repellent layer consisting of a hydrolyzed condensation product of a compound represented by the formula [A-(OX).sub.m-].sub.jY.sup.1[—Si(R).sub.nL.sub.3-n].sub.g, and a silicon oxide layer containing alkali metal atoms that exists between the substrate and the water and oil repellent layer, wherein the average value of the concentration of alkali metal atoms in a predetermined area in the silicon oxide layer is at least a predetermined value. In the formula, X is a fluoroalkylene group, m is at least 2, j, g, and k are at least 1, and Y.sup.1 and Y.sup.2 are linking groups, R is a monovalent hydrocarbon group, L is a hydrolyzable group or hydroxy group, n is 0 to 2, A is a perfluoroalkyl group or —Y.sup.2[—Si(R).sub.nL.sub.3-n].sub.n. When A is —Y.sup.2[—Si(R).sub.nL.sub.3-n].sub.k, j is 1, and when A is a perfluoroalkyl group and j is 1, g is at least 2.

Coating compositions are provided that eject droplets of condensed fluid from a surface. The coatings include a nanostructured coating layer and in some embodiments, also include a hydrophobic layer deposited thereon. The coating materials eject droplets from the surface in the presence of non-condensing gases such as air and may be deployed under conditions of supersaturation of the condensed fluid to be ejected. A heat exchanger design utilizing the coating is described herein.