| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a novel highly transparent adhesive tape, which does not suffer from impression marks caused by a local pressure load during production, storage, transportation or the like, and which is free from unevenness in the appearance due to the impression marks in a case when the adhesive tape is fed out in a sheet-like form. <P>SOLUTION: The adhesive tape has a back surface layer that serves as one outermost layer and an adhesive layer that serves as the other outermost layer. When arithmetic mean low-wavelength-component roughness of the surface of the back surface layer is represented by Ra2 μm, the storage modulus of the adhesive layer at a frequency of 10 Hz at 23°C is represented by G' Pa, and the thickness of the adhesive layer is represented by d μm, the value of B that is defined as B=d/(Ra2×G') is 20×10<SP POS="POST">-6</SP>Pa<SP POS="POST">-1</SP>or more. <P>COPYRIGHT: (C)2013,JPO&INPIT |
