An object of the present invention is to provide an interlayer film for a laminated glass which provides excellent vibration damping performance at high temperature and excellent sound insulation in a wide temperature range.
The interlayer film for a laminated glass of the present invention comprises a part A containing a resin composition A or a resin A and a part B containing a resin composition B or a resin B, and the part A and the part B are horizontally arranged. The interlayer film for a laminated glass has a difference between temperatures Ta and Tb of 10°C or larger when the temperature Ta is a temperature at which the resin composition A or the resin A shows a maximum loss tangent of a dynamic viscoelasticity at a frequency of 1 Hz, and the temperature Tb is a temperature at which the resin composition B or the resin B shows a maximum loss tangent of a dynamic viscoelasticity at a frequency of 1 Hz.
本发明的目的是提供一种用于夹层
玻璃的中间膜,该中间膜在高温下具有优异的减振性能,在宽温度范围内具有优异的隔音性能。
本发明的夹层
玻璃用中间膜包括含有
树脂成分 A 或
树脂 A 的 A 部分和含有
树脂成分 B 或
树脂 B 的 B 部分,A 部分和 B 部分
水平排列。当温度 Ta 是
树脂组合物 A 或
树脂 A 在频率为 1 赫兹时显示动态粘弹性最大损失正切的温度,而温度 Tb 是
树脂组合物 B 或
树脂 B 在频率为 1 赫兹时显示动态粘弹性最大损失正切的温度时,夹层
玻璃用中间膜的温度 Ta 和 Tb 之差为 10°C 或更大。