| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a polyvinyl acetal-based resin composition excellent in terms of resin adhesiveness and capable of inducing, without using a plasticizer, stable manifestations of excellent flexibility and mechanical strengths over an extended period.SOLUTION: The provided polyvinyl acetal-based resin composition is a polyvinyl acetal-based resin composition including a polyvinyl acetal resin and an island component resin having a glass transition point of -100 to 20°C and having a structure obtained by dispersing, as a dispersion phase, the island component resin within the polyvinyl acetal resin prevailing as a continuous phase in a state where the content of the polyvinyl acetal resin and the content of the island component resin with respect to the sum, namely 100 wt.%, of the polyvinyl acetal resin and island component resin are respectively 20-90 wt.% and 10-80 wt.% and where the ratio of the island component resin bonded with the polyvinyl acetal resin is at least 10 wt.% in a case where the total content of the island component resin is defined as 100 wt.%.</p> |
