Substrates Supplied with a Dust and Aerosol-Repellent Coating, Method for the Production Thereof g and Materials for this Purpose

• Main Authors: GOMBERT ANDREAS, GLAUBITT WALTHER, GRAF WOLFGANG
• Format: Patent
• Language: English
• Published: 02.06.2011
• Subjects: ADHESIVES; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; BLASTING; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; HEATING; INKS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIGHTING; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MECHANICAL ENGINEERING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NANOTECHNOLOGY; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; RANGES; SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING; USE OF MATERIALS THEREFOR; VENTILATING; WEAPONS; WOODSTAINS

The present invention relates to a coating material containing (a) first oxidic particles formed by hydrolytic condensation, in a size range of 5-20 nm, (b) second particles with a diameter in the size range of 80-300 nm, (c) a first aqueous solvent in which the source material for the oxidic particles formed by hydrolytic condensation can be dissolved and which allows or promotes the hydrolysis and condensation thereof, and (d) at least one second solvent, selected among specifically defined alcohols, ethers, organic acids, esters, ketones, amines and amic acids and mixtures thereof. The invention relates in addition to a substrate supplied with a coating, particularly a glass suitable for the photovoltaic and warm water collector domain, wherein the coating is composed of at least two particle fractions, wherein the particles of the first fraction have a diameter in the size range of 5-20 nm, and the particles of the second fraction have a diameter in the size range of 80-300 nm, wherein the particles of the second fraction have an average distance from each other, measured from cone to cone of these particles, of on average 20-200 nm, and wherein the particles of the first particle fraction have pores with a pore radius distribution of which the maximum is between 1 and 6 nm. The coating of the substrate can be achieved by means of the named coating material.