HARDENER, CURABLE COMPOSITION AND FOAMABLE RESIN COMPOSITION BOTH CONTAINING THE HARDENER, AND FOAM MADE FROM THE FOAMABLE RESIN COMPOSITION AND PROCESS FOR PRODUCING THE SAME

摘要

For an organic compound having a carbon-carbon double bond, a hardener having sufficient compatibility therewith is used. A curable composition containing the hardener gives a cured article excellent in mechanical properties and appearance including transparency. A foamable resin composition produced by adding a foaming agent to the curable composition can foam and cure at ordinary temperature or with heating at a relatively low temperature. In particular, even when the foamable resin composition contains a highly polar organic compound having a carbon-carbon double bond, a foam having a high expansion ratio and a high percentage of closed cells can be obtained.