| 摘要 |
<p>PURPOSE: Multilayer composite is provided, which is capable of keeping the adhesion of layers over a long time in the contact with a reagent at high temperature and capable of being produced inexpensively and simply. CONSTITUTION: The thermoplastic multilayer composite comprises: at least one layer I of a thermoplastic molding composition; at least one layer II of a further thermoplastic molding composition; and at least one layer of an adhesion promoter disposed between at least one layer I and at least one layer II, wherein the adhesion promoter comprises at least 5% by weight of a graft copolymer comprising the following monomers: a) from 0.5 to 25% by weight, based on the total amount of graft copolymer, of a polyamine having at least 4 nitrogen atoms and having a number average molecular weight Mn of at least 146 g/mol, and b) polyamide-forming monomers selected from the group consisting of lactams, omega-aminocarboxylic acids, equimolar mixtures of diamines and dicarboxylic acids, and mixtures thereof.</p> |
