Abstract: A composition for producing a protective coat against scaling on metallic surfaces. The composition includes, as binders, hydrolysates/condensates of at least one silane or a silicone resin binder and also, further, at least one metallic filler.

Abstract: The invention relates to a silane coating material and a process to produce silane coating. To produce a silane coating material according to the preamble, in which the above-mentioned drawbacks are avoided, according to the invention a process to produce a silane coating is proposed where one or several silanes, which are not or only minimally pre-condensed, are charged with a reactant and the thus created coating material is applied onto a substrate and then hardened. Surprisingly it has been shown that, through the reaction involving higher-molecular and only slightly pre-cross-linked silanes with a suitable reactant, a new class of coating materials can be created. According to the current state of the art, silanes are processed in sol-gel processes, where pre-condensated species are assumed.

Abstract: The invention relates to a method of producing a self-cleaning surface on a substrate. To provide a method according to the preamble, with which surfaces can be produced which are self-cleaning indoors as well and even in the dark, it is suggested according to the invention that a coating with hydrophilic surface components be applied to the substrate and a structure formed in the nanometer range or a combined structure in the nano- and micrometer ranges. The invention surprisingly demonstrates that the principles underlying the Lotus effect® apply not only to hydrophobic but also hydrophilic surfaces.

Abstract: The invention relates to alkali-resistant sol-gel coatings, a process for producing alkali-resistant sol-gel coatings and use thereof. To provide alkali-resistant sol-gel coatings, a coating is proposed within the scope of the invention that consists of a hydrolysable silane of the compounds TEOS, MTEOS or higher-chain alkyl silanes (di- tri- and tetrafunctional silanes), but preferably TEOS, MTEOS or mixtures thereof and a condensation catalyst based on a) secondary or tertiary bases (e.g. amino, mercaptosilanes) and/or b) Lewis acids as metal alkoxides, such as aluminium alkoxides, zirconium alkoxides and titanium alkoxides where the ratio (in wt. %) of hydroysable silane to condensation catalyst is between 99:1 and 70:30.

Abstract: A coating for permanent hydrophilization of surfaces and its use are provided. The coating is made of nano-scale particles having hydrophilic side chains, which can be sintered. The coating may be made of 10 to 90% inorganic structures, 5 to 70% hydrophilic side chains, and 0 to 50% organic side chains having functional groups.

Abstract: The invention relates to a photocatalytically active coating of a substrate, which is composed of a protective layer and photocatalytically active particles that are applied thereto, the protective layer having no photocatalytic activity. The protective layer preferably contains ZrO2 and SiO2.

Abstract: A composition for producing a protective coat against scaling on metallic surfaces. The composition includes, as binders, hydrolysates/condensates of at least one silane or a silicone resin binder and also, further, at least one metallic filler.

Abstract: The invention relates to a method for the production of low solvent sol-gel systems, comprising the following steps: (a) hydrolysis or condensation of a silane and/or an alkoxide and/or several alkoxides of Al, Ce, Ga, Ge, Sn, Ti, Zr, Hf, V, Nb and Ta, (b) addition of water to the reaction mixture until phase separation sets in, and (c) separation of the condensate phase. The invention also relates to the sol-gel system thus obtained and to the use thereof.

Abstract: This invention relates to a catalytic composition which comprises a coating of a coating material on a support and is obtainable by applying the coating material, comprising (1) a polycondensate of at least one hydrolysable organosilane and also, if desired, one or more compounds of glass-forming elements, and (2) particles of one or more transition metal oxides, the weight ratio of transition metal oxide particles to polycondensate being from 10:1 to 1:10, to the support and subjecting the applied coating material to thermal treatment. The invention also relates to a process for preparing this catalytic composition and to its use for the purpose of deodorizing or oxidizing organic components or carbon.

Abstract: A coating material, in particular for high temperature applications, comprises a binding agent and at least one filler material, which can be deposited on a metal surface. For this, the binding agent contains at least one siloxane with an organic residual share of less than 25 weight %. It is preferable if the siloxane or siloxanes is (are) cross-linked three and/or four times.

Abstract: A method is described for producing a microstructured surface relief by applying to a substrate a coating composition which is thixotropic or which acquires thixotropic properties by pretreatment on the substrate, embossing the surface relief into the applied thixotropic coating composition with an embossing device, and curing the coating composition following removal of the embossing device. The substrates obtainable by this method, provided with a microstructured surface relief, are particularly suitable for optical, electronic, micromechanical and/or dirt repellency applications.

Abstract: Coating for permanent hydrophilization of surfaces, and its use The invention relates to a coating for permanent hydrophilization of surfaces, and its use. In order to permanently hydrophilize surfaces, a coating is proposed, within the scope of the invention, which consists of nano-scale particles having hydrophilic side chains, which can be sintered.

Abstract: The invention relates to a method for the production of low solvent sol-gel systems, comprising the following steps: (a) hydrolysis or condensation of a silane and/or an alkoxide and/or several alkoxides of Al, Ce, Ga, Ge, Sn, Ti, Zr, Hf, V, Nb and Ta, (b) addition of water to the reaction mixture until phase separation sets in, and (c) separation of the condensate phase. The invention also relates to the sol-gel system thus obtained and to the use thereof.

Abstract: Domestic appliances are provided with a catalytic deodorizing coating, prepared by applying a coating material containing a polycondensate of at least one hydrolysable organosilane, optionally one or more compounds of glass-forming elements, and particles of one or more catalytically active transition metal oxides, and then heat-treating the applied coating material.

Abstract: Substrates provided with a microstructured surface have a surface layer which (a) comprises a composition comprising condensates of one or more hydrolysable compounds of at least one element M from main groups III to V and/or transition groups II to IV of the Periodic Table of the Elements, at least some of these compounds containing not only hydrolysable groups A but also non-hydrolysable, carbon-containing groups B and the total molar ratio of groups A to groups B in the parent monomeric starting compounds being from 10:1 to 1:2, from 0.1 to 100 mol % of the groups B being groups B′ containing on average from 5 to 30 fluorine atoms which are attached to one or more aliphatic carbon atoms distanced from M by at least two atoms, and (b) has a microstructuring of such kind that the contact angle with respect to water or hexadecane is at least 5° higher than the contact angle of a corresponding smooth surface.

Abstract: The invention relates to domestic appliances bearing on a powder-coated surface a scratch-resistant and abrasion-resistant topcoat of a coating material which comprises: a) condensates based on hydrolysable silanes containing at least one non-hydrolysable substituent, the hydrolysable silanes having an epoxide group on at least one non-hydrolysable substituent; b) a curing catalyst selected from Lewis bases and alkoxides of titanium, zirconium or aluminium; c) nanoscale particulate inorganic solids having a particle size in the range from 1 to 100 nm; and d) at least one organic monomer, oligomer or polymer containing at least one epoxide group.

Abstract: Suspensions and powders based on indium tin oxide are prepared by a method in which indium tin oxide precursors are precipitated from solutions in one or more solvents in the presence of one or more surface-modifying components, the solvent(s) are removed from the precipitate, which is then calcined, one or more surface-modifying components and one or more solvents are added, the mixture is comminuted or dispersed to form a suspension, and the liquid components are separated from the suspension to give a powder. The powder may be converted into a moulding by a shaping process. The materials prepared by this method are especially suitable as coating materials for use in microelectronics and optoelectronics.

Abstract: The invention relates to powder-coated substrates bearing on a powder-coated surface a scratch-resistant and abrasion-resistant topcoat of a coating material which comprises: a) condensates based on hydrolyzable silanes containing at least one non-hydrolyzable substituent, the hydrolyzable silanes having an epoxide group on at least one non-hydrolyzable substituent; b) a curing catalyst selected from Lewis bases and alkoxides of titanium, zirconium or aluminium; c) nanoscale particulate inorganic solids having a particle size in the range from 1 to 100 nm; and d) at least one organic monomer, oligomer or polymer containing at least one epoxide group.

Abstract: What is described is a method for producing a thermally shaped substrate coated with a sol-gel coating material, in which the sol-gel coating material comprises one or more hydrolyzable silanes, which may have been hydrolyzed to form a precondensate, and, if desired, a crosslinking agent, at least some of the hydrolyzable silanes containing on a non-hydrolyzable substituent a functional group by way of which crosslinking is possible, and in which A) the sol-gel coating material is applied to a thermally shapable substrate, B) the applied sol-gel coating material is partially precrosslinked and/or dried, C) the substrate coated with the sol-gel coating material is subsequently shaped thermally, and D) during and/or after the thermal shaping the sol-gel coating material is cured completely by means of thermal or photochemical crosslinking.

Abstract: The present invention provides a coating composition which comprises at least one silicon compound (A) which has at least one radical which is bonded directly to Si, is not able to be separated hydrolytically and contains an epoxy group, a particulate material (B) which is selected from among oxides, oxide hydrates, nitrides and carbides of Si, Al and B and of transition metals and has a particle size within the range 1 to 100 nm, an Si, Ti, Zr, B, Sn or V compound (C) and at least one hydrolysable Ti, Zr or Al compound (D), which comprises the following ratio 1.0 mol of the silicon compound (A), 0.27 to 0.49 mol of the particulate material (B), 0.36 to 0.90 mol of the compound (C) and 0.14 to 0.22 mol of the compound (D).