| 摘要 |
PROBLEM TO BE SOLVED: To provide: a foamed polyurethane excellent in hydrolysis resistance and setting resistance; to provide a method for producing the foamed polyurethane; and to provide a mounting member made of urethane composed of the foamed polyurethane. SOLUTION: An unreactive gas dissolved thermoplastic polyurethane composition is obtained by mixing a thermoplastic polyurethane composition containing: a thermoplastic polyurethane synthesized with at least one polyol of polyether-base polyols, polylactone-based polyols and polycarbonate-based polyols, and a polyisocyanate as essential components; and an isocyanate-terminated prepolymer synthesized with a polyether-based polyol and a polyisocyanate as essential components in a molten state, with an unreactive gas in a supercritical state. Then, the foamed polyurethane is made by injection molding the unreactive gas-dissolved thermoplastic polyurethane composition into a die. COPYRIGHT: (C)2010,JPO&INPIT |
