| 摘要 |
PROBLEM TO BE SOLVED: To provide a synthetic resin sheet whose volume can be easily reduced during recovery or disposal and which does not cause cracks or the like. SOLUTION: In the synthetic resin sheet, (1) the tensile modulus as measured according to JIS K 7113 is 35,000 kgf/cm<SP>2</SP>or less; and (2) a load of 70 g/cm<SP>2</SP>is applied to a sheet having an average thickness of 0.21 mm and a size of 1.5 cm (MD)×11 cm (TD) for one minute to bend the sheet inside by 180°. The return angle of the sheet after removing the load and allowing the bent sheet to stand for 60 minutes is 95°or less. The sheet does not cause cracks or the like during the volume reduction. A rubber-containing styrene resin, a noncrystalline polyalkylene terephthalate resin, a cyclic olefin resin, or the like can be used as the synthetic resin sheet. COPYRIGHT: (C)2010,JPO&INPIT |
