| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an interlayer film for a laminated glass which has no possibility of generating bleed out in spite of using an inexpensive esterified glycerol as a plasticizer, exhibits high transparency, is excellent in penetration resistance, has no possibility of generating foaming under high temperature and high humidity. <P>SOLUTION: The interlayer film for the laminated glass includes a polyvinyl acetal resin and a plasticizer, and in the polyvinyl acetal resin, the content of hydroxyl groups is ≥28 mole%, and the plasticizer is a partially esterified glycerol obtained by esterifying 50-70% of hydroxyl groups of the glycerol expressed by the below described equation (1) with 2-ethylhexanoic acid. <P>COPYRIGHT: (C)2012,JPO&INPIT |
