DE10159288B4 - Process for the permanent coating of a substrate - Google Patents

Process for the permanent coating of a substrate Download PDF

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Publication number
DE10159288B4
DE10159288B4 DE10159288.4A DE10159288A DE10159288B4 DE 10159288 B4 DE10159288 B4 DE 10159288B4 DE 10159288 A DE10159288 A DE 10159288A DE 10159288 B4 DE10159288 B4 DE 10159288B4
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Prior art keywords
coating
particles
fluorinated
substrate
matrix
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DE10159288.4A
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DE10159288A1 (en
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Dr. Sepeur Stefan
Jan Interwies
Dr.-Ing. Groß Frank
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N-Tec 84051 Essenbach De GmbH
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N TEC GmbH
N-TEC GmbH
Nano X GmbH
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/06—Preparatory processes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/66—Additives characterised by particle size
    • C09D7/67—Particle size smaller than 100 nm
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/66—Additives characterised by particle size
    • C09D7/68—Particle size between 100-1000 nm
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D06M15/65—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing epoxy groups
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/42—Coatings with pigments characterised by the pigments at least partly organic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms

Abstract

Verfahren zur dauerhaften hitzebeständigen Beschichtung eines Substrates, wobei die Beschichtung aus einer anorganischen oder anorganisch-organischen Matrix besteht, die durch Hydrolyse und Kondensation eines Silans ausgewählt aus der Gruppe bestehend aus Glycidyloxypropyltriethoxysilan, Methacryloxypropyltrimethoxysilan, Methyltriethoxysilan, Tetraethoxysilan, 1H,1H,2H,2H-Perfluorooctyltriethoxysilan, 1H,1H,2H,2H-Perfluordecyltriethoxysilan und Aminosilanen und eines oder mehrerer Alkoxide oder Metallsalze von Al, B, Ti oder Zr erhalten wird, wobei die Matrix mit fluorierten Partikeln gefüllt ist, wobei die fluorierten Partikel Fluorkohlenstoffverbindungen oder Seitenketten-fluorierte nanoskalige Partikel sind, und einen Silbersalzzusatz enthält und wobei die Beschichtung auf ein Substrat aufgebracht und ausgehärtet wird und die Aushärtung der Beschichtung bei Temperaturen zwischen 300°C und 400°C erfolgt.A process for the durable heat-resistant coating of a substrate, the coating consisting of an inorganic or inorganic-organic matrix obtained by hydrolysis and condensation of a silane selected from the group consisting of glycidyloxypropyltriethoxysilane, methacryloxypropyltrimethoxysilane, methyltriethoxysilane, tetraethoxysilane, 1H, 1H, 2H, 2H- Perfluorooctyltriethoxysilane, 1H, 1H, 2H, 2H-Perfluordecyltriethoxysilane and aminosilanes and one or more alkoxides or metal salts of Al, B, Ti or Zr is obtained, wherein the matrix is filled with fluorinated particles, wherein the fluorinated particles fluorocarbon compounds or side chain fluorinated nanoscale Particles are and contains a silver salt additive and wherein the coating is applied to a substrate and cured and the curing of the coating takes place at temperatures between 300 ° C and 400 ° C.

Description

Die Erfindung betrifft ein Verfahren zur dauerhaften hitzebeständigen Beschichtung eines Substrates.The invention relates to a process for the permanent heat-resistant coating of a substrate.

Aus dem Stand der Technik sind verschiedene Beschichtungen zum Aufbringen auf ein Substrat bekannt, welche entweder als Bulk oder als Beschichtungswerkstoff eingesetzt werden, um beispielsweise die Reinigungsfähigkeit von Oberflächen zu verbessen.Various coatings for application to a substrate are known in the prior art, which are used either as a bulk or as a coating material, for example to improve the cleanability of surfaces.

Hierzu gehören teflonartige Beschichtungen, also Fluorcarbonharze und Derivate hiervon, die ein sehr gutes Antihaftverhalten aufweisen, jedoch auch schlecht an den Substraten haften und zudem eine geringe Abriebfestigkeit aufweisen. Die tribologischen Eigenschaften dieser Fluorcarbonharze sind ebenfalls herausragend.These include Teflon-like coatings, ie fluorocarbon resins and derivatives thereof, which have a very good non-stick behavior, but also adhere poorly to the substrates and also have a low abrasion resistance. The tribological properties of these fluorocarbon resins are also outstanding.

Weiterhin sind gefüllte Fluorcarbonharze, beispielsweise aus der EP 109 171 B1 bekannt, bei denen die weichen Fluorpolymere, um eine höhere Abriebfestigkeit zu erhalten, mit Metall oder Oxidfüllern im μm-Bereich gefüllt werden, so daß sich die mechanische Verschleißresistenz wesentlich verbessert. Nachteil dieser Technik ist es, daß der organische Fluorcarbonbinder in der Hitze, wie sie z. B. bei Bratpfannenbeschichtungen auftritt, weich, bzw. flüssig wird und damit die Abriebbeständigkeit wesentlich verschlechtert wird, so daß beim Gebrauch die oxidischen Füller aus der Matrix ausgetragen werden.Furthermore, filled fluorocarbon resins, for example from EP 109 171 B1 in which the soft fluoropolymers, in order to obtain a higher abrasion resistance, are filled with metal or oxide fillers in the micron range, so that the mechanical wear resistance substantially improved. Disadvantage of this technique is that the organic fluorocarbon binder in the heat, as z. B. occurs in frying, soft, or liquid and thus the abrasion resistance is significantly deteriorated, so that in use the oxide filler are discharged from the matrix.

Fluorierte Silane, die auf Oberflächen aufgesintert werden, zeigen besonders im keramischen Bereich hohe Abriebfestigkeiten, werden aber beim Gebrauch von Säuren und Laugen sehr schnell chemisch von den Oberflächen abgekoppelt, so daß eine Anwendbarkeit im Küchenbereich bisher nicht bekannt ist.Fluorinated silanes, which are sintered on surfaces, show high abrasion resistance, especially in the ceramic range, but are quickly decoupled chemically from the surfaces when using acids and alkalis, so that applicability in the kitchen sector is not yet known.

Sol-Gel-Gradientenmaterialien, wie sie aus der US 5,274,159 , der EP 587 667 B1 , der DE 196 49 954 A1 und der DE 196 49 955 A1 bekannt sind, zeigen zwar hohe Abriebbeständigkeiten, doch wird auch hier aufgrund der Gradientenstruktur ein chemischer Abtrag festgestellt.Sol-gel gradient materials as they are derived from US 5,274,159 , of the EP 587 667 B1 , of the DE 196 49 954 A1 and the DE 196 49 955 A1 Although known high abrasion resistance, but also here due to the gradient structure, a chemical erosion is detected.

Aus der JP 05-170909 A ist eine wässrige Dispersion von Polymer-Partikeln bekannt, in der US 6,129,980 A wird die Herstellung von Antireflexbeschichtungen über einen Zweischichtaufbau beschrieben, wobei Fluorpolymere eingesetzt werden, um den Brechungsindex der Schicht zu erniedrigen. In der DE 695 16 755 T2 werden Beschichtungen auf Basis von Zusammensetzungen aus Silikonen und Fluorharzmikroteilchen beschrieben. Die EP 0 459 003 A1 beschreibt eine Beschichtungszusammensetzung mit antimikrobieller Wirkung, welche durch Zusatz eines antimikrobiell wirkenden Metalls erreicht wird. Die JP-H10-279885 A beschreibt Beschichtungen auf der Basis von Hydrolysaten bzw. Kondensaten von Silanen, denen Silbersalze zugesetzt werden, um eine antibakterielle Wirkung zu erzielen.From the JP 05-170909 A is an aqueous dispersion of polymer particles known in the US 6,129,980 A describes the preparation of antireflective coatings via a two-layer structure, wherein fluoropolymers are used to lower the refractive index of the layer. In the DE 695 16 755 T2 Coatings based on compositions of silicones and fluororesin microparticles are described. The EP 0 459 003 A1 describes a coating composition with antimicrobial activity, which is achieved by adding an antimicrobial metal. The JP-H10-279885 A describes coatings based on hydrolysates or condensates of silanes to which silver salts are added in order to achieve an antibacterial effect.

Zusammenfassend läßt sich also feststellen, daß gemäß dem Stand der Technik entweder die Matrix weich und der Füller hart ist, wobei der Füller sich aus der Matrix ablöst bzw. enthaftet oder aber die Matrix hart ist und es der Beschichtung an chemischer Beständigkeit bzw. an fluorierter Masse fehlt.In summary, it can thus be stated that, according to the prior art, either the matrix is soft and the filler is hard, with the filler detaching from the matrix or the matrix being hard and the coating having a chemical resistance or being fluorinated Mass is missing.

Aufgabe der Erfindung ist es ein Verfahrens zur dauerhaften hitzebeständigen Beschichtung eines Substrates bereitzustellen. Die Beschichtung ist chemikalienbeständig und weist eine hohe Abriebsbeständigkeit auf.The object of the invention is to provide a method for the permanent heat-resistant coating of a substrate. The coating is chemical resistant and has a high abrasion resistance.

Im Rahmen der Erfindung wird dies durch ein Verfahren zur dauerhaften hitzebeständigen Beschichtung eines Substrates erreicht, wobei die Beschichtung aus einer anorganischen oder anorganisch-organischen Matrix besteht, die durch Hydrolyse und Kondensation eines Silans ausgewählt aus der Gruppe bestehend aus Glycidyloxypropyltriethoxysilan, Methacryloxypropyltrimethoxysilan, Methyltriethoxysilan, Tetraethoxysilan, 1H,1H,2H,2-Perfluorooctyltriethoxysilan, 1H,1H,2H,2H-Perfluordecyltriethoxysilan und Aminosilanen und eines oder mehrerer Alkoxide oder Metallsalze von Al, B, Ti oder Zr erhalten wird, wobei die Matrix mit fluorierten Partikeln gefüllt ist, wobei die fluorierten Partikel Fluorkohlenstoffverbindungen oder Seitenketten-fluorierte nanoskalige Partikel sind, und einen Silbersalzzusatz enthält und wobei die Beschichtung auf ein Substrat aufgebracht und ausgehärtet wird und die Aushärtung der Beschichtung bei Temperaturen zwischen 300°C und 400°C erfolgt.Within the scope of the invention, this is achieved by a process for the permanent heat-resistant coating of a substrate, the coating consisting of an inorganic or inorganic-organic matrix obtained by hydrolysis and condensation of a silane selected from the group consisting of glycidyloxypropyltriethoxysilane, methacryloxypropyltrimethoxysilane, methyltriethoxysilane, tetraethoxysilane , 1H, 1H, 2H, 2-perfluorooctyltriethoxysilane, 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane and aminosilanes and one or more alkoxides or metal salts of Al, B, Ti or Zr, the matrix being filled with fluorinated particles, wherein the fluorinated particles are fluorocarbon compounds or side chain fluorinated nanoscale particles, and containing a silver salt additive and wherein the coating is applied to a substrate and cured and the curing of the coating at temperatures between 300 ° C and 400 ° C.

Im Rahmen der Erfindung hat sich überraschend gezeigt, daß durch die Verwendung von anorganischen oder organischen Beschichtungen, die mit fluorierten Partikeln gefüllt sind, eine dauerhafte, hitzebeständige, chemikalienbeständige, auf dem Substrat fest haftende Beschichtung erreicht werden kann. Es handelt sich also um weiche Füller in einer relativ harten Matrix, bei der kein Auslösen oder Aufweichen der Beschichtung bei hoher Temperatur zu beobachten ist und die dennoch sehr abriebbeständig ist.Within the scope of the invention it has surprisingly been found that by using inorganic or organic coatings filled with fluorinated particles, a durable, heat-resistant, chemical-resistant coating firmly adhering to the substrate can be achieved. It is therefore soft filler in a relatively hard matrix, in which no triggering or softening of the coating is observed at high temperature and yet is very resistant to abrasion.

Der Kontaktwinkel dieser Beschichtungen gegen Wasser beträgt mehr als 60° (> 60°), vorzugsweise mehr als 90° (> 90°). Die beschriebenen Beschichtungen lassen sich mattieren, füllen oder strukturieren. Im Falle von Oberflächenstrukturierungen im Nano- oder Mikrobereich zeigen diese hydrophoben Schichten Kontaktwinkel gegen Wasser von mehr als 140° und selbstreinigende Eigenschaften.The contact angle of these coatings against water is more than 60 ° (> 60 °), preferably more than 90 ° (> 90 °). The described coatings can be matted, filled or structured. In the case of surface structuring in the nano or micro range, these hydrophobic layers show contact angles against water of more than 140 ° and self-cleaning properties.

Erfindungsgemäß ist vorgesehen, daß die Matrix neben den fluorierten Partikeln 0 bis 40 Gew.-%, vorzugsweise 0 bis 20 Gew.-% Partikel enthält, wobei diese Partikel insbesondere Oxide, Sulfide, Phosphate oder Sulfate von Metallen oder Oxide bzw. Sulfide von Halbmetallen sind.According to the invention it is provided that the matrix in addition to the fluorinated particles 0 to 40 wt .-%, preferably 0 to 20 wt .-% contains particles, said particles in particular oxides, sulfides, phosphates or sulfates of metals or oxides or sulfides of semimetals are.

Hierbei ist vorgesehen, daß die Beschichtung 5 bis 75 Gew.-%, vorzugsweise 5 bis 60 Gew.-% fluorierte Partikel mit einer Partikelgröße von 5 nm bis 10 μm, vorzugsweise von 10 nm bis 1 μm, enthält. Für transparente Anwendungen werden Partikelgrößen zwischen 10 und 200 nm bevorzugt.It is envisaged that the coating 5 to 75 wt .-%, preferably 5 to 60 wt .-% of fluorinated particles having a particle size of 5 nm to 10 .mu.m, preferably from 10 nm to 1 .mu.m. For transparent applications, particle sizes between 10 and 200 nm are preferred.

Hierbei ist es zweckmäßig, daß das Aufbringen der Beschichtung durch Schütten, Fluten, Tauchen, Walzen, Schleudern oder Sprühen erfolgt.It is expedient that the coating is applied by pouring, flooding, dipping, rolling, spinning or spraying.

Erfindungsgemäß ist vorgesehen, daß Schichtdicken von 100 nm bis 50 μm, bevorzugt von 1 μm bis 15 μm aufgebracht werden.According to the invention, it is provided that layer thicknesses of 100 nm to 50 .mu.m, preferably from 1 .mu.m to 15 .mu.m are applied.

Möglich ist weiterhin, daß die Aushärtung über Strahlenhärtung oder durch Kombination von thermischer und Strahlenhärtung erfolgt.It is also possible that the curing takes place via radiation curing or by combination of thermal and radiation curing.

Claims (6)

Verfahren zur dauerhaften hitzebeständigen Beschichtung eines Substrates, wobei die Beschichtung aus einer anorganischen oder anorganisch-organischen Matrix besteht, die durch Hydrolyse und Kondensation eines Silans ausgewählt aus der Gruppe bestehend aus Glycidyloxypropyltriethoxysilan, Methacryloxypropyltrimethoxysilan, Methyltriethoxysilan, Tetraethoxysilan, 1H,1H,2H,2H-Perfluorooctyltriethoxysilan, 1H,1H,2H,2H-Perfluordecyltriethoxysilan und Aminosilanen und eines oder mehrerer Alkoxide oder Metallsalze von Al, B, Ti oder Zr erhalten wird, wobei die Matrix mit fluorierten Partikeln gefüllt ist, wobei die fluorierten Partikel Fluorkohlenstoffverbindungen oder Seitenketten-fluorierte nanoskalige Partikel sind, und einen Silbersalzzusatz enthält und wobei die Beschichtung auf ein Substrat aufgebracht und ausgehärtet wird und die Aushärtung der Beschichtung bei Temperaturen zwischen 300°C und 400°C erfolgt.A process for the durable heat-resistant coating of a substrate, the coating consisting of an inorganic or inorganic-organic matrix obtained by hydrolysis and condensation of a silane selected from the group consisting of glycidyloxypropyltriethoxysilane, methacryloxypropyltrimethoxysilane, methyltriethoxysilane, tetraethoxysilane, 1H, 1H, 2H, 2H- Perfluorooctyltriethoxysilane, 1H, 1H, 2H, 2H-Perfluordecyltriethoxysilane and aminosilanes and one or more alkoxides or metal salts of Al, B, Ti or Zr is obtained, wherein the matrix is filled with fluorinated particles, wherein the fluorinated particles fluorocarbon compounds or side chain fluorinated nanoscale Particles are and contains a silver salt additive and wherein the coating is applied to a substrate and cured and the curing of the coating takes place at temperatures between 300 ° C and 400 ° C. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß die Matrix neben den fluorierten Partikeln 0 bis 40 Gew.-%, vorzugsweise 0–20 Gew.-% Partikel enthält, wobei diese Partikel insbesondere Oxide, Sulfide, Phosphate oder Sulfate von Metallen oder Oxide bzw. Sulfide von Halbmetallen sind.A method according to claim 1, characterized in that the matrix contains in addition to the fluorinated particles 0 to 40 wt .-%, preferably 0-20 wt .-% of particles, said particles in particular oxides, sulfides, phosphates or sulfates of metals or oxides or Sulfides of semi-metals are. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß die Beschichtung 5 bis 75 Gew.-%, vorzugsweise 5 bis 60 Gew.-% fluorierte Partikel mit einer Partikelgröße von 5 nm bis 10 μm, vorzugsweise von 10 nm bis 1 μm, enthält.Process according to Claim 1, characterized in that the coating contains 5 to 75% by weight, preferably 5 to 60% by weight, of fluorinated particles having a particle size of 5 nm to 10 μm, preferably of 10 nm to 1 μm. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß das Aufbringen der Beschichtung durch Schütten, Fluten, Tauchen, Walzen, Schleudern oder Sprühen erfolgt.A method according to claim 1, characterized in that the coating is applied by pouring, flooding, dipping, rolling, spinning or spraying. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß die Beschichtung in Schichtdicken von 100 nm bis 50 μm, vorzugsweise von 1 μm bis 15 μm aufgebracht wird.Process according to Claim 1, characterized in that the coating is applied in layer thicknesses of 100 nm to 50 μm, preferably 1 μm to 15 μm. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß die Aushärtung über Strahlenhärtung oder durch Kombination von thermischer und Strahlenhärtung erfolgt.A method according to claim 1, characterized in that the curing is carried out by radiation curing or by combination of thermal and radiation curing.
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