| 摘要 |
PROBLEM TO BE SOLVED: To obtain thermoplastic resin foamed sheets excellent in moldability, heat resistance, and oil resistance and additionally having tearability. SOLUTION: Thermoplastic resin foamed sheets can be obtained from resin compositions containing (A) 3-97 wt.% styrenic resin and (B) 97-3 olefinic resin, and component (A) and component (B) form a structure of their respective continuous phases and a so-called islands-in-sea structure, and with respect to the phase structure in the direction of thickness, the layer in the neighborhood of the center is of a so-called islands-in-sea structure and at least one surface layer is of a structure of their respective continuous phases. |
