| 摘要 |
PROBLEM TO BE SOLVED: To provide a molded article of polyurethane resin having a proper rigidity, excellent in damping effect. SOLUTION: The invention relates to the molded article of polyurethane resin comprising a polyurethane resin obtained by reacting a polyol and an isocyanate, and fibers, wherein the polyol comprises a straight chain polyol A with≥1,000 of molecular weight and a polyfunctional polyol B with≥550 of hydroxy value, and an isocyanate C which is a polymeric MDI is used as the isocyanate. And the molded article of polyurethane resin is used for a crosstie or a gasket. COPYRIGHT: (C)2006,JPO&NCIPI
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