Process for manufacturing an electromagnetic interference shielding metallic foil cladded plastic product

Abstract

The present invention provides a process and apparatus for manufacturing an electromagnetic interference shielding metallic foil cladded plastic product. The process comprises (a) coating one side of a superplastic alloy plate with a coupling agent or a hot melt adhesive; (b) placing the coupling agent- or hot melt adhesive-coated superplastic alloy plate in a mold, and superplastically forming the superplastic alloy plate to a superplastic alloy foil with a predetermined shape, such that another side of the superplastic alloy foil is attached to the mold and the coupling agent- or hot melt adhesive-coated side of the superplastic alloy foil is spaced apart from the mold to form a mold cavity, wherein an injection machine is attached to the mold cavity, and wherein the injection machine is capable of injecting softened plastic into the mold cavity; (c) introducing softened plastic from the injection machine to the mold cavity, such that plastic adheres on the coupling agent- or hot melt adhesive-coated side of the superplastic alloy foil, and an electromagnetic interference shielding metallic foil cladded plastic product is formed; and (d) removing the plastic product from the mold. The final metallic plastic product can not only have as intricate a shape as an ordinary plastic product, but also has a shielding effectiveness as high as an ordinary metallic shield.

Dependencies are inferred from the claim text.