| 摘要 |
<p>PURPOSE: To make it possible to recycled use as well as obtain good durability, shock resistance, mechanical properties and surface property by constituting a composite molding using a propylene polymer as a main body and making a polymer adhere to both sides of a foamed core with a hot-melt adhesive layer. CONSTITUTION: This shock-absorbing propylene polymer composite molding comprises: (a) a layer with a thickness of 0.5 to 10 mm containing a propylene polymer having a melting point of 130 to 165 deg.C, (b) an intermediate layer with a thickness of 0.05 to 0.5 mm containing a hot-melt adhesive of olefin copolymer having a melting point of 90 to 140 deg.C as a main body, (c) a foamed layer with a thickness of 3 to 200 mm containing a propylene copolymer having a melting point of 125 to 155 deg.C as a main body and a density of 0.015 to 0.1 g/cm<2> , (d) an intermediate layer with a thickness of 0.05 to 0.5 mm containing a hot-melt adhesive of olefin copolymer having a melting point of 90 to 140 deg.C as a main body, and (e) a layer with a thickness of 0.5 to 10 mm containing a propylene polymer having a melting point of 130 to 165 deg.C.</p> |
