Abstract: The present invention relates to a vapor-pervious water-impervious substrate, preferably a fibrous nonwoven web, which can be used in particular as a textile continuous sheet material, for example as an awning or as an inlet in apparel. The substrate according to the present invention may have self-cleaning properties. The substrate according to the present invention is simple to produce in an at least two-step process wherein a coating on the fibers of the substrate is produced in the first step and then hydrophobic particles are applied to the coated fibers by means of an adhesion promoter.

Abstract: Textiles coated with self-cleaning surfaces which contain hydrophobic nanostructured particles protruding from a coating having hydrophilic properties are provided.

Abstract: A modified flame-spraying method for producing self-cleaning surfaces by a dry coating process penetrates particles in a hot air or flame stream into the softened substrate surface. The process can be applied to textiles and other articles having plastic surfaces.

Abstract: The invention relates to mold-release agents, in particular mold-release agents which can be used for demolding moldings from molding tools, and also to the use of these mold-release agents. The mold-release agents of the invention, which are preferably based on suspensions of nanostructured microparticles, have the advantage of being markedly more environmentally compatible than the known mold-release agents based on organic or organosilicon compounds, since they can remain on the surfaces of the moldings. The use of the mold-release agents of the invention is very simple, since advantage can be taken of existing equipment. An example of a usual method is to produce injection moldings by means of injection molds into which the material is injected. The mold-release agent of the invention is applied, e.g. by spray-application, to the injection mold prior to the actual injection-molding process.

Abstract: The invention relates to a process for producing self-cleaning surfaces on coated textile sheets, by the following steps of the process: i.) applying hydrophobic nanostructured particles to a surface of a transfer-medium sheet, ii.) applying a coating composition and a textile sheet to those surfaces of the transfer medium to which the hydrophobic nanostructured particles were applied in step i.) of the process, iii.) heat treatment of the composite resulting from steps i.) to ii.) of the process, and iv.) removing the transfer medium, and also to the coated textile sheets produced by means of the process of the invention, and their use.

Abstract: Disclosed are a process for producing a suspension of hydrophobic oxidic particles which has a defined, adjustable viscosity, which comprises suspending low structured hydrophobic oxidic particles in at least one organic suspension agent and then adding from 0.05% to 15% by weight based on the suspension medium of high structured hydrophobic oxidic particles, a suspension of hydrophobic oxidic particles which has a defined, adjustable viscosity and the use thereof for producing soil and water repellent coatings on articles.

Abstract: A self-regenerating, self-cleaning hydrophobic surface is formed when particles are secured on a carrier that is itself a mixture of particles and binder. When particles on the surface are ablated by erosion, new particles in the carrier are exposed to regenerate the self-cleaning surface, resulting in a long-lasting self-cleaning action. The self-cleaning surface may be used with particular advantage outdoors, e.g. on vehicles, where self-cleaning materials are particularly exposed to the effects of the environment.

Abstract: The invention relates to a process for producing hydrophobic nanostructured surfaces, which features the application of a dispersion of water in hydrophobic oxides to the surface to be treated and the subsequent removal of the water, and also to the surfaces produced by means of this process and to their use for producing soil- and water-repellent surfaces on objects.

Abstract: The invention relates to the use of microparticles hydrophobized with fluorosilanes or -siloxanes for producing surfaces which have self-cleaning and also lactophobic, oleophobic and lipophobic properties. The use of microparticles hydrophobized with fluorosilanes in the known processes for producing self-cleaning surfaces makes it possible to produce surfaces which have not only self-cleaning properties but also lipophobic, oleophobic and lactophobic properties. Articles finished with such surfaces are especially easy to clean easily with removal of oil-, grease- or milk-containing soilings. The inventive use is therefore especially suitable for producing industrial textiles, workwear and children's clothing.

Abstract: The present invention relates to a vapor-pervious water-impervious substrate, preferably a fibrous nonwoven web, which can be used in particular as a textile continuous sheet material, for example as an awning or as an inlet in apparel. The substrate according to the present invention may have self-cleaning properties. The substrate according to the present invention is simple to produce in an at least two-step process wherein a coating on the fibers of the substrate is produced in the first step and then hydrophobic particles are applied to the coated fibers by means of an adhesion promoter.

Abstract: The present invention relates to textile sheetlike constructions having an enhanced watertightness and also to a process for producing them. It was found that, surprisingly, the watertightness of porous textile sheetlike constructions is enhanced when a coating of hydrophobic particles having an average particle size in the range from 0.02 to 100 ?m is applied to the surfaces of the fibers. The textile sheetlike constructions can be used for example as textile building materials or for producing tents, umbrellas or the like.

Abstract: The present invention relates to self-cleaning surfaces having improved mechanical stability and a process for the production thereof. The present invention is achieved by producing self-cleaning, hydrophobic, structured surfaces having mixtures of particles, which are fixed on their surface and which comprise structure-producing particles selected from semimetal or metal oxides, silicas and metal powders, and wax particles. Structured surfaces that are structured by such mixtures of particles are distinguished by substantially higher mechanical stability of the structure and are therefore especially suitable for the production of self-cleaning surfaces, which are exposed to relatively high mechanical loads, such as, for example, the surfaces of tarpaulins, awnings, greenhouse elements, conservatories or truck tarpaulins.

Abstract: The present invention relates to textile sheetlike constructions having an enhanced watertightness and also to a process for producing them. It was found that, surprisingly, the watertightness of porous textile sheetlike constructions is enhanced when a coating of hydrophobic particles having an average particle size in the range from 0.02 to 100 ?m is applied to the surfaces of the fibers. The textile sheetlike constructions can be used for example as textile building materials or for producing tents, umbrellas or the like.

Abstract: Diffuse-reflection surfaces which have a matte appearance and which have self-cleaning properties and preferably have antimicrobial properties, are prepared by coating a substrate with a random distribution of the particles to at least one surface of a substrate, thereby providing a surface comprising elevations with a height of from 20 nm to 100 ?m and with a separation of less than 100 ?m between the elevations. Such diffuse-reflection surfaces can be used as protective covers or as protective layers, in particular for providing non-angle-dependent viewing. The diffuse reflection surfaces of the present invention have self-cleaning properties and are resistant to colonization by microorganisms.

Abstract: The invention relates to a process for producing self-cleaning surfaces on coated textile sheets, by the following steps of the process: i.) applying hydrophobic nanostructured particles to a surface of a transfer-medium sheet, ii.) applying a coating composition and a textile sheet to those surfaces of the transfer medium to which the hydrophobic nanostructured particles were applied in step i.) of the process, iii.) heat treatment of the composite resulting from steps i.) to ii.) of the process, and iv.) removing the transfer medium, and also to the coated textile sheets produced by means of the process of the invention, and their use.

Abstract: A light-scattering material includes a coating with self-cleaning properties on a transparent substrate. Particles randomly distributed in and on the coating roughen the coating and provide a surface structure that scatters light. The light-scattering material is useful in providing indirect illumination, particularly using daylight. The coating can have antimicrobial properties. The light-scattering material can require significantly less maintenance than conventional light-scattering materials.

Abstract: Disclosed are a process for producing a suspension of hydrophobic oxidic particles which has a defined, adjustable viscosity, which comprises suspending low structured hydrophobic oxidic particles in at least one organic suspension agent and then adding from 0.05% to 15% by weight based on the suspension medium of high structured hydrophobic oxidic particles, a suspension of hydrophobic oxidic particles which has a defined, adjustable viscosity and the use thereof for producing soil and water repellent coatings on articles.

Abstract: A process for producing anti-allergic surfaces, and articles which comprise these anti-allergic surfaces. The process of the invention produces anti-allergic surfaces. The basis of the anti-allergic action is that self-cleaning properties make it impossible or very difficult for allergenic substances to deposit on these surfaces, and make it possible for them to be cleaned from the surface by a simple cleaning procedure using water set in motion. The surfaces may be either textile surfaces or polymer surfaces. Structures composed of elevations and depressions, as have been described on many previous occasions, are applied to these surfaces. The coatings of the invention can be applied very simply by applying a dispersion of suitable particles in a solvent to the relevant surface and then removing the solvent. Textiles, mattresses, or covers, for example, can be provided with the anti-allergic surfaces of the invention.

Abstract: A process for producing anti-allergic surfaces, and articles which comprise these anti-allergic surfaces. The process of the invention produces anti-allergic surfaces. The basis of the anti-allergic action is that self-cleaning properties make it impossible or very difficult for allergenic substances to deposit on these surfaces, and make it possible for them to be cleaned from the surface by a simple cleaning procedure using water set in motion. The surfaces may be either textile surfaces or polymer surfaces. Structures composed of elevations and depressions, as have been described on many previous occasions, are applied to these surfaces. The coatings of the invention can be applied very simply by applying a dispersion of suitable particles in a solvent to the relevant surface and then removing the solvent. Textiles, mattresses, or covers, for example, can be provided with the anti-allergic surfaces of the invention.

Abstract: The invention relates to mold-release agents, in particular mold-release agents which can be used for demolding moldings from molding tools, and also to the use of these mold-release agents. The mold-release agents of the invention, which are preferably based on suspensions of nanostructured microparticles, have the advantage of being markedly more environmentally compatible than the known mold-release agents based on organic or organosilicon compounds, since they can remain on the surfaces of the moldings. The use of the mold-release agents of the invention is very simple, since advantage can be taken of existing equipment. An example of a usual method is to produce injection moldings by means of injection molds into which the material is injected. The mold-release agent of the invention is applied, e.g. by spray-application, to the injection mold prior to the actual injection-molding process.