| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new foam having a uniform minute foam structure and excellent in toughness and thermal resistance. <P>SOLUTION: The foam has spherical bubbles, the average pore diameter of the spherical bubbles is less than 20 μm, the density of the foam is 0.15-0.9 g/cm<SP POS="POST">3</SP>, and cracks are not generated in a 180°C bending test. <P>COPYRIGHT: (C)2012,JPO&INPIT |
