| 摘要 |
PROBLEM TO BE SOLVED: To improve the heat resistance and the wear resistance of a laminate by forming a resin layer of polyamide-imide resin containing an amine residue component of specific formula, as a repeating unit, in a molecular chain, at least, on one of the faces of metal moldings. SOLUTION: A resin layer of polyamide-imide resin containing an amine residual components, which is shown by formula indicating the formation of an imide bond and an amide bond, as a repeating unit, in a molecular chain, is formed at least, on one of the faces of metal moldings. In the formula, R1, R2 are a 1-4C alkyl group and may be the same as or different from each other. This polyamide-imide resin can be manufactured industrially, for example, by an isocyanate process. The raw material to be used into which the amine residue component shown by the formula is contained is, for example, trimellitic acid anhydride or pyromellitic acid anhydride as an acid component. The amide component is tolidine or O-tolidine diisocyanate. |
