| 摘要 |
PROBLEM TO BE SOLVED: To provide an interlayer for laminated glass which is excellent in sound insulation property in a wide range of temperature and has a colored layer for intercepting solar light. SOLUTION: The interlayer for laminated glass is constituted so that an intermediate layer which has a part A comprising a resin composition A or a resin A and a part B comprising a resin composition B or a resin B, in the horizontal direction, is held between two covering layers, wherein a difference between the temperature Ta at which the loss tangent of dynamic viscoelasticity at frequency 1 Hz of the resin composition A or the resin A exhibits the maximum value and the temperature Tb at which the loss tangent of dynamic viscoelasticity at frequency 1 Hz of the resin composition B or the resin B exhibits the maximum value is 10°C or more, the covering layer is made of a resin composition containing a polyvinyl acetal resin and at least one part of the part A and the part B or, when there are a plurality of parts A and parts B, at least one part among the plurality of parts A and parts B is colored. COPYRIGHT: (C)2011,JPO&INPIT
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