| abstract |
An interlayer film for laminated glass that is excellent in vibration damping performance in a temperature range between the normal temperature range and the high temperature range in addition to the vibration suppression performance in the normal temperature range and the high temperature range, and the interlayer film for laminated glass. Provide laminated glass. An intermediate film for laminated glass having an intermediate layer and two protective layers sandwiching the intermediate layer, wherein the intermediate layer and the protective layer contain a polyvinyl acetal resin and a plasticizer. The temperature T1 indicating the maximum value of the loss tangent of dynamic viscoelasticity at a frequency of 1 Hz of the intermediate layer is lower than the temperature T2 indicating the maximum value of the loss tangent of dynamic viscoelasticity at a frequency of 1 Hz of the protective layer, The intermediate film for laminated glasses whose average polymerization degree of the polyvinyl acetal resin contained in an intermediate | middle layer is 100-1200. [Selection] Figure 3 |