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AssigneeBASF SE
InventorsStephan Hüffer, Thilo Krebs, Klaus-Dieter Hungenberg, Ingolf Kühn, Ekkehard Jahns, Christian Lach, Harald Keller, Andreas Pfau, Thomas Frechen, Bernd Diebold, Peter Dillmann
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The surfaces of apparatuses and apparatus parts for chemical plant construction, including, for example, apparatus, container and reactor walls, discharge apparatuses, fittings, pumps, filters, compressors, centrifuges, columns, heat exchangers, dryers, comminuting machines, internals, packings and mixing elements, are coated by a process wherein protuberances having a mean height of from 100 nm to 50 μm with a mean spacing of from 100 nm to 100 μm are produced on the surface to be coated and the coating is applied thereon by currentless deposition of a metal layer or of a metal-polymer dispersion layer with the aid of a plating bath which contains a metal electrolyte, a reducing agent and optionally a polymer or polymer blend to be deposited, in dispersed form.
A process for coating apparatuses and apparatus parts for chemical plant construction, the surface to be coated is structured so that it has protuberances having a mean height of from 100 nm to 50 μm with a mean spacing of from 100 nm to 100 μm on the surface to be coated and the coating is applied thereon by currentless deposition of a metal-polymer dispersion layer with the aid of a plating bath which contains a metal electrolyte, a reducing agent and a polymer or polymer blend to be deposited, in dispersed form.
Dependencies are inferred from the claim text.