Back extruded molding useful in automobile body construction is obtained by back extrusion of plastics foil, back extruded from fiber reinforced plastics, has improved cold ductility combined with decreased linear thermal expansion.

摘要

A back extruded plastics molded part is back extruded from a plastics back extruded foil of thickness 0.5-10 mm and from a fiber reinforced plastics material of fiber content 5-30 wt.%. The back extruded material has a thickness of 1.5-4.5 mm is new. An Independent claim is also included for a preparation of a plastics molded part by back extrusion through an adapter or extrusion nozzle of a substrate (1), and/or an intermediate layer (2), and/or a transparent top layer(3), where the whole composite is prepared in a single stage process. the back extruded foil is heat formed in a forming tool, and the back extruded foil is back extruded with fiber reinforced material, with addition of the fibers directly during processing, so that their length in the finished product exceeds 1 mm.