| 摘要 |
PROBLEM TO BE SOLVED: To provide a shaped article capable of recycling by laminating a polyolefin skin, a polypropylene core and a foam as a cushioning material. SOLUTION: The shaped article 1 is composed of three layers in which the polyolefin skin 4, foam 6 as a cushioning material and polypropylene core 5 are laminated. As the foam 6, is used a substantially linear, thermoplastic polyurethane foam, which is produced by reacting a diol including a long-chain diol with a molecular weight of 1,000-3,000 and a solubility parameter (SP value) of 7.6-8.3, a diisocyanate and water, at a molar ratio of the isocyanate group to the hydroxy group of 0.9-1.1. COPYRIGHT: (C)2005,JPO&NCIPI |
