| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyurethane composition capable of obtaining a molded polyurethane article, which is easily recycled and has an excellent abrasion resistance without being subjected to surface treatment, and to provide the molded polyurethane article using the polyurethane composition. SOLUTION: The polyurethane composition includes thermoplastic polyurethane and silicone-dynamically-vulcanized thermoplastic polyurethane which is vulcanized dynamically by silicone and has thermoplasticity. The thermoplastic polyurethane is blended with the silicone-dynamically-vulcanized thermoplastic polyurethane by the mass ratio of (60-90)/(40-10). The thermoplastic polyurethane has≥60 to≤90 Shore A hardness and the silicone-dynamically-vulcanized thermoplastic polyurethane has 50 to≤85 Shore A hardness. COPYRIGHT: (C)2009,JPO&INPIT
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