| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an intermediate film for laminated glass capable of obtaining laminated glass capable of suppressing generation and growth of bubbles, and to provide the laminated glass. <P>SOLUTION: This intermediate film 1 for laminated glass includes a first layer 2, and a second layer laminated on one surface 2a of the first layer 2. The first and second layers 2, 3 respectively contain a polyvinyl acetal resin and a plasticizer. The hydroxy group content in the polyvinyl acetal resin in the first layer 2 is lower than the hydroxy group content in the polyvinyl acetal resin in the second layer 3. The difference between the hydroxy group content in the polyvinyl acetal resin in the first layer 2 and the hydroxy group content in the polyvinyl acetal resin in the second layer 3 is ≤9.2 mol%. When the content difference is >8.5 mol% and ≤9.2 mol%, the degree of acetylation of the polyvinyl acetal resin in the first layer is ≤8 mol%. <P>COPYRIGHT: (C)2012,JPO&INPIT |
