| abstract |
(57) [Summary] [PROBLEMS] The moldability and handleability are sufficient without impairing the basic performance required for laminated glass such as transparency, weather resistance and impact energy absorption, and adhesion to glass. An interlayer film for laminated glass capable of exhibiting excellent sound insulation performance over a wide temperature range is obtained. SOLUTION: This is an interlayer film for laminated glass composed of a laminate comprising a plurality of plasticized polyvinyl acetal resin films, wherein at least one layer of the polyvinyl acetal resin film has an average degree of polymerization of 2000 to 3000. (A) and a polyvinyl acetal resin (B) having an average degree of polymerization of 300 to 600 and a difference in the average degree of polymerization of the polyvinyl acetal resin (A) of not less than 1500, and a polyvinyl acetal resin (B). Is based on 100 parts by weight of the polyvinyl acetal resin (A) An interlayer for laminated glass, which is mixed at a ratio of 3 to 8 parts by weight. |