| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a laminate which shows a reflection preventive function due to a nano uneven structure and also, high mar resistance, especially, not less than 3H by pencil hardness tests in compliance with JIS K5600-5-4. <P>SOLUTION: This laminate includes a surface layer laminated on a transparent base material through an intermediate layer. The thickness of the intermediate layer is 8 to 40 μm and the thickness of the surface layer is 0.4 to 1.5 times the thickness of the intermediate layer. In addition, the tan δ(loss tangent) of the intermediate layer is not less than 0.2 at 20°C, 1 Hz. Especially, the surface layer is a layer with a nano uneven structure. The breaking stress under compression of the intermediate layer is not less than 20 MPa, and the compression stress at the compressibility of 20% is 1 to 20 MPa. Besides, it is preferable that the intermediate layer is constituted of a resin which can be restored to the thickness of not less than 90% of its original thickness, when the stress is released after compression. <P>COPYRIGHT: (C)2012,JPO&INPIT |
