Molding with reverse side plastics carrier especially for use in vehicle exterior parts includes a composite with graft copolymer substrate, impact-modified interlayer and cover layer containing polymethyl methacrylate

摘要

A molding with a plastics carrier injected, foamed, cast or pressed on the reverse side of a composite plate or film is such that the plate or film includes (A) a substrate comprising by weight (i) a rubber elastic graft copolymer (1-99%), (ii) a harder copolymer of units derived from vinyl aromatic monomers (1-99%), (iii) a polycarbonate (0-80%) and (iv) a fibrous and/or particulate filler; (B) an interlayer containing an impact-modified polymethyl methacrylate, polycarbonate and/or styrene copolymer; and (C) a cover layer containing (i) polystyrene-acrylonitrile and/or poly-alpha -methylstyrene-acrylonitrile (97-99%) and (ii) polymethyl methacrylate (1-3%). An independent claim is also included for production of the molding with all the layers in the composite plate or film being melt coextruded to firmly bonded to each other.