Multilayer structure having at least one metal layer and at least one polyamide layer

A method for generating a polyamide layer on a metal element comprising:

• preparing a mixture of a polyamide moulding composition consisting of the following components:
• (a) a polyamide based on cycloaliphatic diamines, cycloaliphatic dicarboxylic acids, or both cycloaliphatic diamines and cycloaliphatic dicarboxylic acids, or a mixture of such polyamides, having a glass transition temperature (Tg) of at least 130° C.;
• (b) a polyolefine based on
• C2-C12 alkenes, in branched or unbranched form, or a mixture thereof, and additionally
• at least one monomer selected from the group consisting of:
• maleic anhydride, itaconic anhydride, glycidyl acrylate, glycidyl methacrylate, acrylic acid, methacrylic acid, vinyl acetate, C1-C12 alkyl acrylates, C1-C12 alkyl methacrylates, substituted or unsubstituted styrene or a mixture of such monomers;
• (c) an aliphatic polyamide different from (a), or a mixture of such polyamides;
• (d) additives;
• with the proviso that the fraction of components (c) and (d) may be zero, and with the proviso that the sum of the components (a)-(d) makes 100 wt %, and coating the metal element with said polyamide moulding composition.

A method for generating an electrical conductor insulated with a polyamide layer, comprising:

• preparing a mixture of a polyamide moulding composition consisting of the following components:
• (a) a polyamide based on cycloaliphatic diamines, cycloaliphatic dicarboxylic acids, or both cycloaliphatic diamines and cycloaliphatic dicarboxylic acids, or a mixture of such polyamides, having a glass transition temperature (Tg) of at least 130° C.;
• (b) a polyolefine based on
• C2-C5 alkenes, in branched or unbranched form, or a mixture thereof, and additionally
• at least one monomer selected from the group consisting of:
• maleic anhydride, itaconic anhydride, glycidyl acrylate, glycidyl methacrylate, acrylic acid, methacrylic acid, vinyl acetate, C1-C12 alkyl acrylates, C1-C12 alkyl methacrylates, substituted or unsubstituted styrene or a mixture of such monomers;
• (c) an aliphatic polyamide different from (a), or a mixture of such polyamides;
• (d) additives;
• with the proviso that the fraction of components (c) and (d) may be zero, and with the proviso that the sum of the components (a)-(d) makes 100 wt %, and,
• coating the electrical conductor with said polyamide moulding composition.