FLAT PRODUCT WITH A COATING SYSTEM AND PROCESS FOR COATING SAID FLAT PRODUCT

• Main Authors: LOSTAK, THOMAS, KIMPEL, MATTHIAS
• Format: Patent
• Language: English; French
• Published: 18.06.2015
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

A flat product according to the invention has a core layer made of a metal material and, applied to the core layer, a coating system which comprises a conversion layer with inorganic constituents, where said conversion layer improves the adhesion between the core layer and an external layer to be applied to the flat product and containing at least one polymer. In order to provide a coating system that does not create risk to the environment and that at the same time meets all requirements relating to adhesion of the polymer layer, the invention proposes that the coating system comprises an adhesion promoter component which consists of an organosilane and which provides protective covering of the adhesion-promoting inorganic constituents of the conversion layer with respect to the surroundings. The invention also provides a process for producing a flat product according to the invention.