| 摘要 |
The present invention provides an interlayer film for a laminated glass which can suppress bubble formation and bubble growth in the laminated glass, and an interlayer film for the laminated glass. An interlayer film for a laminated glass 1 includes a first layer 2, a second layer laminated on one face 2a of the first layer 2. Each of the first layer 3 and the second layer 3 contains a polyvinyl acetal resin and a plasticizer. The hydroxyl content of the polyvinyl acetal resin in the first layer 2 is lower than the hydroxyl content of the polyvinyl acetal resin in the second layer 3. The difference between the hydroxyl content of the polyvinyl acetal resin in the first layer 2 and the hydroxyl content of the polyvinyl acetal resin in the second layer 3 is at most 9.2 mol%. If the difference in the content is higher than 8.5 mol% and at most 9.2 mol%, a degree of acetylation of the polyvinyl acetal resin of the polyvinyl acetal resin in the first layer is at most 8 mol%. |
