REINFORCED THERMOPLASTIC-RESIN MULTILAYER SHEET MATERIAL, PROCESS FOR PRODUCING THE SAME, AND METHOD OF FORMING MOLDED THERMOPLASTIC-RESIN COMPOSITE MATERIAL

摘要

A reinforced thermoplastic-resin multilayer sheet material which includes , as a matrix, a thermoplastic resin excellent in suitability for recycling and impact resistance and which has high quality and is excellent in mechani cal properties and draping properties. Also provided are: a process for effi ciently producing the reinforced thermoplastic-resin multilayer sheet materi al in a short time; and a reinforced thermoplastic-resin multilayer molding obtained by forming the reinforced thermoplastic-resin multilayer sheet mate rial and retaining the high quality and mechanical properties. The reinforce d thermoplastic-resin multilayer sheet material (11) comprises reinforcing t hermoplastic-resin sheet materials (21A) to (21D) superposed together which each is composed of a reinforcing fibrous sheet material (31) obtained by pa ralleling reinforcing fibers (31f) in a given direction and forming them int o a sheet and a thermoplastic-resin sheet material (41) adherent to one side of the reinforcing fibrous sheet material (31), the sheet materials (21A) t o (21D) having been united together by stitching with a thermoplastic-resin fiber bundle (51) for uniting which is made of the same material as the ther moplastic-resin sheet materials (41). The reinforcing fibrous sheet material s (31) have been superposed so that their reinforcing directions are multi-a xial.