| 摘要 |
[Problems to be solved] The present invention provides a sealing sheet that can be used instead of the sealing sheet made from the conventionally widely used EVA, which has good transparency, heat resistance and adhesiveness with a polypropylene resin, and good productivity. [Means to solve the problems] The sealing sheet (I) is made from a thermoplastic resin composition comprising
0 to 90 parts by weight of a propylene polymer (A) having a melting point, as measured by a differential scanning calorimeter, of 100°C or higher, and
10 to 100 parts by weight of a propylene copolymer (B), wherein the copolymer is formed from propylene, and at least one olefin selected from the group consisting of ethylene and ±-olefins having 4 to 10 carbon atoms, and the copolymer has a shore A hardness of 30 to 80 and has a melting point, as measured by a differential scanning calorimeter, of 100°C or lower or has no melting point to be observed (with the total of (A) and (B) being 100 parts by weight), wherein the thermoplastic resin composition has a permanent compression set, as measured at 23°C, of 5 to 35%, and a permanent compression set, as measured at 70°C, of 50 to 70%. |
