REINFORCED THERMOPLASTIC-RESIN MULTILAYER SHEET MATERIAL, PROCESS FOR PRODUCING THE SAME, AND METHOD OF FORMING MOLDED THERMOPLASTIC-RESIN COMPOSITE MATERIAL
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United States of America Patent
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app pub date -
Jun 1, 2012
filing date -
Nov 22, 2006
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Abstract
A high-quality multilayer thermoplastic-resin-reinforced sheet material having excellent mechanical properties and drapeability in which a thermoplastic resin excellent in recycling efficiency and shock resistance is used as a matrix. A thermoplastic-resin multilayer reinforced molding formed of the multilayer thermoplastic-resin-reinforced sheet material, in which the high quality and the mechanical properties are maintained. The multilayer thermoplastic-resin-reinforced sheet material (11) is formed by stacking thermoplastic-resin-reinforced sheet materials (21A) to (21D) each formed of a reinforcing-fiber sheet material (31), consisting of a plurality of reinforcing fibers (31f) arranged in a predetermined direction in a sheet-like structure, and a thermoplastic-resin sheet material (41) joined to a surface of the reinforcing-fiber sheet material (31), and stitching them together with an integration thermoplastic-resin fiber tow (51) composed of the same material as the thermoplastic-resin sheet material (41). The reinforcing-fiber sheet materials (31) are stacked such that their reinforcing directions are multiaxial.
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