METHOD FOR COATING METAL SURFACES OF SUBSTRATES AND OBJECTS COATED IN ACCORDANCE WITH SAID METHOD

• Main Authors: KLOPZIG, PHILIPP, SCHWAMB, MICHAEL, SEEWALD, OLIVER, NIESEN, EVGENIJA, WASSERFALLEN, DANIEL, FRENKEL, ALIAKSANDR, SOTKE, VERA, SCHACHTSIEK, LARS, EILINGHOFF, RON, BREMSER, WOLFGANG, GEROLD, STEPHANIE, DROLL, MARTIN, TRAUT, MANUEL
• Format: Patent
• Language: English; French
• Published: 22.01.2015
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; 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 COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CORRECTING FLUIDS; DIFFUSION TREATMENT OF METALLIC MATERIAL; DYES; FILLING PASTES; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention relates to a method for coating surfaces, to a corresponding coating, and to the use of the objects coated according to said method. According to the invention, the method has or consists of the following steps: I. providing a substrate with a cleaned surface, II. contacting and coating the surfaces with an aqueous composition in the form of a dispersion and/or suspension, VI. if necessary rinsing the organic coating, and VII. drying and/or baking the organic coating or VIII. if necessary drying the organic coating and carrying out a coating process using a similar or additional coating composition prior to a drying and/or baking process, wherein between step I and step II, the coating process is carried out using an aqueous composition in the form of a dispersion and/or suspension on the basis of a colloidal silicate sol, which incorporates multivalent metal cations, or a silane- or silicate-modified polymer and if necessary a rinsing process is carried out. L'invention concerne un procédé de revêtement de surfaces, un revêtement correspondant, ainsi que l'utilisation des objets revêtus par ce procédé. Selon l'invention, le procédé comprend les étapes suivantes ou en est constitué : I) préparation d'un substrat ayant une surface nettoyée, II) mise en contact et revêtement des surfaces avec une composition aqueuse sous la forme d'une dispersion ou/et d'une suspension, VI) rinçage facultatif du revêtement organique et VII) séchage ou/et cuisson du revêtement organique, ou VIII) séchage facultatif du revêtement organique et revêtement avec une composition de revêtement identique ou différente avant séchage ou/et cuisson. Entre l'étape I et l'étape II, le revêtement est soumis à un traitement avec une composition aqueuse sous la forme d'une dispersion ou/et d'une suspension à base d'un sol silicatique colloïdal incorporant des cations métalliques multivalents ou à base d'un polymère à modification silane ou silicate, suivi le cas échéant d'une opération de rinçage.