| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an intermediate film for laminated glass, having excellent damping properties at a high temperature and sound insulation properties over a wide temperature range. <P>SOLUTION: The film includes a portion A composed of a resin composition A or resin A, and a portion B composed of a resin composition B or resin B, being arranged horizontally. The difference between a temperature Ta indicating the maximum loss tangent of dynamic viscoelasticity of the resin composition A or resin A at a frequency of 1 Hz and a temperature Tb indicating the maximum loss tangent of dynamic viscoelasticity of the resin composition B or resin B at a frequency of 1 Hz, is at least 10°C; and a horizontally arranged portion C composed of a resin composition C or resin C is further included in the film, where the maximum tangent loss of dynamic viscoelasticity of the resin composition C or resin C at a frequency of 1 Hz is at an intermediate temperature Tc between Ta and Tb. <P>COPYRIGHT: (C)2010,JPO&INPIT |
