To provide an intermediate film for laminate glass which can enhance bending rigidity of laminate glass, can enhance sound insulation properties of the laminate glass, and can suppress generation of foaming and growth of foaming in the laminate glass.SOLUTION: An intermediate film for laminate glass is an intermediate film for laminate glass having a single-layer structure or structure made up of two or more layers, and includes a first layer containing a polyvinyl acetal resin and a plasticizer, in which a glass transition temperature of the first layer is 10°C or lower and an elastic modulus of the first layer at 30°C is 285,000 Pa or more.SELECTED DRAWING: Figure 1
【課題】合わせガラスの曲げ剛性を高めることができ、合わせガラスの遮音性を高めることができ、かつ合わせガラスにおける発泡の発生及び発泡の成長を抑制できる合わせガラス用中間膜を提供する。【解決手段】本発明に係る合わせガラス用中間膜は、1層の構造又は2層以上の構造を有する合わせガラス用中間膜であり、ポリビニルアセタール樹脂と可塑剤とを含む第1の層を備え、前記第1の層のガラス転移温度が10℃以下であり、30℃における前記第1の層の弾性率が285000Pa以上である。【選択図】図1
INTERMEDIATE FILM FOR LAMINATE GLASS AND LAMINATE GLASS
合わせガラス用中間膜及び合わせガラス
2020-02-06
Patent
Electronic Resource
Japanese
IPC: | C03C Chemische Zusammensetzungen für Gläser, Glasuren oder Emails , CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge |
INTERMEDIATE FILM FOR GLASS LAMINATE, GLASS LAMINATE, AND GLASS LAMINATE SYSTEM
European Patent Office | 2018
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