| abstract |
The present invention provides an interlayer film for laminated glass that can improve the sound insulation of laminated glass in a relatively low temperature region.nThe interlayer film for laminated glass of the present invention has a one-layer structure or two or more layers. The interlayer film is sandwiched between two sheets of green glass with a thickness of 2 mm to obtain a size of 25 mm in length and 300 mm in width. When laminating glass X, the second resonant frequency of the above-mentioned laminated glass X before irradiating xenon light and the secondary resonant frequency of the above-mentioned laminated glass X after irradiating xenon obtained by a specific xenon light irradiation test The absolute value of the difference is above 60 Hz, the loss coefficient of the above-mentioned laminated glass X at 20°C is above 0.25, and the solar transmittance of the above-mentioned laminated glass X is below 50%. |