| 摘要 |
PROBLEM TO BE SOLVED: To provide an interlayer for laminated glass, excellent in sound insulating property in a wide temperature range and excellent in protection of privacy such a way that the layer transmits light but prevents a person or an object at the back from being visible through the layer. SOLUTION: The interlayer for laminated glass comprises an intermediate layer having a portion (A) made of a resin composition (A) or a resin (A) and a portion (B) made of a resin composition (B) or a resin (B), in a horizontal direction, interposed by two coating layers. The difference between the temperature Ta where the loss tangent of dynamic viscoelasticity of the resin composition (A) or the resin (A) at 1 Hz frequency reaches the maximum and the temperature Tb where the loss tangent of dynamic viscoelasticity of the resin composition (B) or the resin (B) at 1 Hz frequency reaches the maximum is 10°C or more. The coating layer comprises a resin composition containing a polyvinyl acetal resin. The coating layer contains an opacifier. COPYRIGHT: (C)2011,JPO&INPIT
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