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    • 28. 发明公开
    • PROCEDE DE REVETEMENT D'UNE SURFACE D'UN SUBSTRAT EN MATERIAU NON METALLIQUE PAR UNE COUCHE METALLIQUE
    • 方法用于涂覆基材的表面由不含金属材料有金属层
    • EP2561117A1
    • 2013-02-27
    • EP11723649.7
    • 2011-04-19
    • Pegastech
    • ROUSSEL, SébastienGILBERT, Frida
    • C23C18/22C23C18/30C23C18/40C23C18/44C23C18/54
    • C23C18/1886C23C18/1639C23C18/1653C23C18/1658C23C18/1855C23C18/1896C23C18/2013C23C18/2073C23C18/22C23C18/38C23C18/40C23C28/023C25D5/56C25D9/02Y10T428/31678
    • The present invention relates to a process for coating a surface of a substrate made of nonmetallic material with a metal layer. According to this invention, the coating process consists of the following steps: a. a substrate made of nonmetallic material is provided, b. at least part of at least one surface of said substrate is subjected to a physical or chemical treatment for increasing the specific surface area thereof, c. that surface of said substrate which was treated in step b) is subjected to an oxidizing treatment, d. that surface of said substrate which was treated in step c) is brought into contact with a solution containing at least one ion of at least one metal and its counterion, said metal being chosen from the group formed by the metals of groups IB and VIII of the Periodic Table of the Elements, e. a substrate comprising ions of at least one metal that are chemically attached to the nonmetallic material constituting the substrate on at least part of at least one of its surfaces is obtained, f. said ions of at least one metal that are chemically attached to the nonmetallic material constituting the substrate on a surface of said substrate are subjected to a reducing treatment and a substrate comprising atoms of at least one metal that are chemically attached to the nonmetallic material constituting the substrate on at least part of at least one of its surfaces is obtained, g. the surface comprising particles of at least one metal which was obtained in step f) is brought into contact with a solution containing ions of at least one metal, h. a coating formed by a layer of at least one metal is obtained on the treated surface of said substrate, said steps optionally being followed or preceded by one or more rinsing steps. The invention also relates to a substrate made of nonmetallic material, at least one surface of which is coated with a metal activation layer formed by atoms of a metal that are bonded, through metal-ligand interaction, directly to the constituent material of the substrate by carboxyl (-COOH), hydroxyl (-OH), alkoxyl (-OR), carbonyl (-C=O), percarbonic (-CO-O-OH), nitro (N=O) or amide (-CONH) groups, said activation layer being covered with a layer of an identical or different metal deposited by electroless deposition.