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|1. (WO2018181758) INTERLAYER FOR LAMINATED GLASS, AND LAMINATED GLASS|
|Applicants:||SEKISUI CHEMICAL CO., LTD.
|Title:||INTERLAYER FOR LAMINATED GLASS, AND LAMINATED GLASS|
Provided is an interlayer for laminated glass with which it is possible to improve the flexural rigidity of laminated glass over a wide range of temperatures, while improving the piercing resistance of laminated glass. This interlayer for laminated glass contains polyvinyl acetal resin and a second resin other than polyvinyl acetal resin, has a phase separation structure, and in an exponential curve fit which plots, as a log-log graph, the relation of complex viscosity at a frequency of 0.1-500 sec-1 at a temperature of 160°C with frequency as the x axis and complex viscosity as the y axis, the a in y=bxa falls within the range of -1 to -0.7 inclusive, the coefficient of determination R2 is 0.99 or higher, complex viscosity at a frequency of 100 sec-1 at a temperature of 160°C falls within the range of 900 Pa·s to 4500 Pa·s inclusive, and the glass transition temperature of components derived from the second resin is at least 30°C lower than the glass transition temperature of components derived from the polyvinyl acetal resin contained in the interlayer.