| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayer mold-releasing film which can be easily disposed of after use, and which can suppress the formation of a void during thermal press molding, the outflow of an adhesive and the exudation of a cushion layer resin on a film end surface, while having heat resistance, mold release characteristics and the property of following a surface of a substrate. SOLUTION: This multilayer mold-releasing film comprises at least a mold-releasing layer which consists of a crystalline aromatic polyester resin with a 200°C or more melting point measured by using a differential scanning calorimeter, and a cushion layer which consists of a polyolefin resin with a melt flow rate of 7 g/10 min or less and a 70-130°C melting point measured by using the differential scanning calorimeter. The thickness of the mold-releasing layer is in the range of 5-50μm. COPYRIGHT: (C)2007,JPO&INPIT
|
