HYDROPHOBIC COATING COMPRISING A PRIMING INCLUDING A BIS-SILANE AND A HYDROPHOBIC LAYER INCLUDING A FLUORINATED ALKYSILANE

• Main Authors: DROS ANNE BEREND, HUIGNARD ARNAUD, ROHAUT NATHALIE
• Format: Patent
• Language: English
• Published: 27.08.2009
• Subjects: ADHESIVES; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; 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; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIME, MAGNESIA; METALLURGY; MINERAL OR SLAG WOOL; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; REFRACTORIES; SLAG; SPRAYING OR ATOMISING IN GENERAL; 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; TRANSPORTING; TREATMENT OF NATURAL STONE; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention relates to a hydrophobic coating for a glass, ceramic or vitroceramic substrate, characterized in that it comprises two layers: a priming layer directly applied onto said substrate and comprising groups Si-R3-Si, R3 being chosen from the group constituted by linear, branched or aromatic, preferably linear, alkyl chains in which the number of carbons establishing the bond between the two silicon atoms is less than 6 and is preferably between 1 and 4, a coating layer in connection with said priming layer and comprising an alkylsilane with a hydrophobic/oleophobic perfluorinated end group. The invention also relates to a process for obtaining such a coating on a substrate as described previously, and also to the substrate itself, of the monolithic, laminated or multiple glazing type, equipped on at least part of at least one of its surfaces with said coating.