| 摘要 |
PURPOSE:To provide a hot melt adhesive and a biaxially oriented multilayer styrene resin sheet each of which is excellent in heat resistance, oil resistance, etc. CONSTITUTION:A hot melt adhesive comprising a block copolymer composed of 10-90wt.% block segment based on an aromatic vinyl compound, 0-50wt.% block segment based on a conjugated diene compound or a hydrogenated diene compound and 10-90wt.% block segment based on a lactone compound and having a number-average molecular weight of 10000-500000 and a biaxially oriented multilayer styrene resin sheet wherein at least either of the surface layers are made of a polyester resin layer, the internal layers are made of styrene-based resin layers, and the intermediate adhesive layer is made of the above block copolymer are provided. These copolymer and sheet are excellent in heat resistance, oil resistance, etc. |
