| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a foamable composition for a polyurethane foam not only advantageously securing the excellent characteristics in brittleness and dimensional stability, but also effectively improving adhesiveness at a low temperature in the polyurethane foam produced by utilizing carbon dioxide as a foaming agent. <P>SOLUTION: When producing the polyurethane foam by using the carbon dioxide for foaming, a phenol resin-based polyol obtained by adding an alkylene oxide to a novolak-type phenol resin containing free phenol in a proportion of 5-30 mass%, and an aromatic polyol obtained by adding an alkylene oxide to an aromatic compound having a benzene ring to which a plurality of hydroxy groups are bonded are used in combination as a polyol compound. <P>COPYRIGHT: (C)2011,JPO&INPIT |
