| 摘要 |
<p>Pre-expanded particles of crystalline aromatic polyester-based resin which is excellent in expansion fusion bonding during expansion molding, and an in-mold expanded product being improved particularly in fusion bonding ratio and mechanical strength and an expanded laminate using the pre-expanded particles. The pre-expanded particles have a bulk density of 0.01 to 1.0 g/cm3 and a peak temperature of crystallization of 130 to 180°C, and can be suitably used in in-mold expansion molding. The in-mold expanded product is formed by the in-mold expansion molding of the above pre-expanded particles, and the expanded laminate is prepared by laminating a film or sheet of an aromatic polyester-based resin directly on the above in-mold expanded product and forming them in one piece.</p> |
