Sekisui Chemical Co., Ltd.

Sekisuichemicalco.,ltd.

Chikao Shimizu

Yoshio Aoshima

Kiyofumi Toyama

The invention provides an interlayer film for a laminated glass and a laminated glass, which are protected against a slump in TL value through attenuation of said coincidence effect and adapted to display an outstanding sound insulation performance over a broad temperature range. An interlayer film for a laminated glass comprising a plasticizer and a polyacetal resin, which is a blend of a polyacetal resin having an average polymerization degree of 1,000 to 3,000 and a polyacetal resin having an average polymerization degree of 3,000 to 5,000, and which has an acetalization degree of 60 to 85 mol % and an acetyl group content of 8 to 30 mol %. An interlayer film for a laminated glass which shows a temperature dependence of loss tangent in which the lowest-temperature side maximum of loss tangent appears at 30&#xb0; C. or lower when examined for dynamic viscoelasticity.

Interlayer film for laminated glass and laminated glass

The invention provides an interlayer film for a laminated glass and a laminated glass, An interlayer film for a laminated glass comprising a plasticizer and a polyacetal resin, An interlayer film for a laminated glass

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Shiga, Japan

Chikao Shimizu