| 摘要 |
PROBLEM TO BE SOLVED: To provide: a polyvinyl acetal resin that has excellent transparency as well as that has a high equilibrium modulus, and that can realize excellent impact resistance performance when used as an interlayer film for glass laminate; an interlayer film for glass laminate in which said polyvinyl acetal resin is used; and a glass laminate.SOLUTION: Provided is a polyvinyl acetal resin in which, when a differential scanning calorimetry is carried out, the melting point is 150 to 250°C, the heat of fusion is 10 to 100 mJ/mg, and in which the acetalization degree is 5 to 50 mol% and in which the syndiotactic hydroxyl group ratio is 28 to 60%. |
