| abstract |
The present invention provides a foamed sheet which has both flexibility and shock absorbing properties and has electrostatic dissipation properties. The foamed sheet is a foamed sheet which is formed by laminating an antistatic layer on one or both sides of the foamed layer and has an apparent density of 15 to 150 kg/m3, and the foamed layer is a polymer containing low density polyethylene. The vinyl resin is a base resin, and the antistatic layer is a base resin composed of a low-density polyethylene, and contains a polymer type antistatic agent. The melting point of the polymer type antistatic agent is 125. ~140 ° C, and the ratio of the partial heat of fusion of the portion above the melting point to the total heat of fusion is 40% or less, and the polymer type antistatic agent is mixed with 45 to 300 parts by mass with respect to 100 parts by mass of the polyethylene resin, antistatic The basis weight of the layer was 1 to 50 g/m2, and when the voltage of 10 kV was applied to the antistatic layer of the foam sheet for 30 seconds, the initial static voltage was 50 V or less. |