| abstract |
A plasticizer contained in a laminate is hard to be extracted and volatilized by water, and even when a laminate having a high moisture content is rapidly dried in an atmosphere of low temperature and low humidity, water and plasticizer are not contained in the laminate. Provided is a laminate that is difficult to phase separate from polyvinyl acetal and that is unlikely to bleed between layers of water or a plasticizer. Furthermore, the present invention provides a laminate that has good adhesion to glass and is less likely to be whitened even under high humidity conditions. A layer containing polyvinyl acetal (A) having an average residual hydroxyl group content of X (mol%), a plasticizer (Ap) and a dispersant (Ad), and an average residual hydroxyl group content of Y (mol%). A polyvinyl acetal (B) and a plasticizer (Bp), and a B layer which may contain a dispersant (Bd), wherein X ≧ Y, and the A layer is further added to the polyvinyl acetal (A). On the other hand, it is related with a laminated body containing 10-800 ppm of magnesium salts. [Selection figure] None |