| abstract |
Provided is a double-sided pressure-sensitive adhesive tape that can adhere and fix parts constituting a portable electronic device to the device body, has excellent punchability and impact resistance, has high step following capability, and has a good appearance. A double-sided pressure-sensitive adhesive tape having pressure-sensitive adhesive layers on both sides of a base material, wherein the base material has a surface layer containing a polyolefin resin on both sides of an intermediate layer containing a styrene-based rubber, The intermediate layer has a styrene content of the styrene-based rubber of 5 to 20% by weight, a tan δ peak temperature in dynamic viscoelasticity measurement of −25 ° C. or less, and the surface layer has a melt flow rate (MFR) of 15 g / A double-sided pressure-sensitive adhesive tape having a density of 10 min or less, a density of 930 kg / m 3 or less, and a difference in melt flow rate (MFR) between the intermediate layer and the surface layer of 12 g / 10 min or less. [Selection figure] None |