| 摘要 |
<p>Crosslinkable polyurethane compositions capable of giving a urethane molding, e.g., a urethane foam, which can be molded by melt molding although it has been crosslinked and which has a crosslinked structure even after molding. A first composition comprises a bifunctional polyol, an isocyanate, and a crosslinking agent. A second composition is a polyurethane composition comprising a polyol and an isocyanate, wherein the polyol is a modified polyol obtained by modifying the terminal hydroxy groups of the polyol with one or more active-hydrogen groups selected from the group consisting of aliphatic hydroxy, aromatic hydroxy, active methylene, thiol, acid amide, acid imide, urea, oxime, amine, and imine.</p> |
