Hydrophobic coating comprising a priming including a bis-silane and a hydrophobic layer including a fluorinated alkysilane

• Main Authors: DROS ANNE BEREND, CODAZZI NATHALIE, HUIGNARD ARNAUD
• Format: Patent
• Language: Chinese; English
• Published: 22.10.2008
• Subjects: ADHESIVES; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; CORRECTING FLUIDS; DYES; FILLING PASTES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GLASS; INKS; JOINING GLASS TO GLASS OR OTHER MATERIALS; LIME, MAGNESIA; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MINERAL OR SLAG WOOL; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; REFRACTORIES; SLAG; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TREATMENT OF NATURAL STONE; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention concerns a hydrophobic coating for a glass, ceramic, glass-ceramic substrate, characterized in that it comprises two layers: one priming layer applied directly on said substrate and comprising Si-R -Si, R being selected among the group consisting of linear, branched, or aromatic alkyl chains, preferably linear, wherein the number of carbon atoms binding the two silicon atoms is less than 6 and preferably between 1 and 4; a coating layer bound to said priming layer and comprising an alkylsilane at a hydrophobic/oil-repellent perfluorinated terminal. The invention also concerns a method for obtaining such a coating on said substrate, as well as the substrate itself, of the monolithic, laminated or multiple glazing type, provided on at least one part of at least one of its surfaces with said coating.