| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a foamed sheet which is uniformly foamed and has a high expansion ratio, is lightweight and have high heat insulating properties, and excels in rigidity and heat resistance. <P>SOLUTION: By using a polypropylene-based resin composition composed of a polypropylene-based resin and a specific polyethylene-based resin having a high swell ratio, a foamed sheet which has a high expansion ratio, is lightweight and excels in heat insulating properties, and excels in rigidity and heat resistance is formed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
