| 摘要 |
PROBLEM TO BE SOLVED: To obtain a crosslinked polyurethane composition that is thermally melted and molded in spite of being crosslinked and forms a urethane molding such as urethane foam forming a crosslinked structure even after molding. SOLUTION: The crosslinked polyurethane composition comprises a composition composed of a bifunctional polyol, an isocyanate and a crosslinking agent. In a polyurethane composition containing a polyol and an isocyanate, the polyol is a modified polyol obtained by modifying the terminal hydroxy groups of the polyol into one or more active hydrogens selected from the group consisting of an aliphatic hydroxy group, aromatic hydroxy group, active methylene, thiol, acid amide, acid imide, urea, oxime, amine and imine to give the crosslinked polyurethane composition. COPYRIGHT: (C)2006,JPO&NCIPI |
