POLYVINYL ACETAL-BASED RESIN COMPOSITION

摘要

The present invention provides a polyvinyl acetal resin composition exerting excellent mechanical strength over a wide temperature range from low temperatures to high temperatures. The present invention provides a polyvinyl acetal resin composition containing a polyvinyl acetal resin and a resin having a crosslinked structure, the polyvinyl acetal resin composition having a structure in which the resin having a crosslinked structure is dispersed as a dispersed phase in the polyvinyl acetal resin as a continuous phase, the polyvinyl acetal resin composition having a maximum value of a loss tangent derived from the polyvinyl acetal resin at 40°C or higher and a maximum value of a loss tangent derived from the resin having a crosslinked structure at 10°C or lower in measurement of a dynamic viscoelasticity spectrum at a frequency of 10 Hz.