| abstract |
(57) [Summary] [Purpose] Excellent sound insulation performance in a wide temperature range around room temperature without impairing basic performance such as transparency, impact energy absorption, low self-adhesion, and adhesion to glass. An interlayer film for a laminated glass having the same is provided. [Structure] The vinyl acetate content is 8 to 30 mol%, and It comprises a polyvinyl acetal resin acetalized with an aldehyde having 4 to 6 carbon atoms, a plasticizer, and a polyvalent isocyanate compound containing two or more isocyanate groups in the molecule. |